For 2020‑2024 Jeep Wrangler JL Tow Package Camp n' Field Trailer Hitch + Brake Controller Curt Assure 51160 Proportional Up To 4 Axles + 7 Way Trailer Wiring Plug & 2‑5/16" ball 4 inch drop Fits Diesel Only Curt 13564 2 inch Tow Receiver
Model: 13564 51527 56407 57672 51500 58361 45042 51160-CH2541This Trailer Tow Hitch + Brake Controller + 7-Way Wiring + 2-5/16" Ball + 4" Drop + Bracket Fits The Following Vehicles:
2020 - 2024 Jeep Wrangler JL All Models
This Trailer Tow Hitch + Brake Controller + 7-Way Wiring + 2-5/16" Ball + 4" Drop + Bracket Includes the Following Parts:
- Class 3 Trailer Hitch, 2" Receiver (Drilling Required)
- Trailer Brake Controller Harness
- Custom Wiring Harness, 4-Way Flat Output (Plug & Play)
- Dual-Output Electrical Adapter Trailer Brake Controller Wiring Kit and 30-Amp Universal Circuit Breaker, with duplex undercar wires, circuit breakers, terminals, and ring connectors.
- Loaded Ball Mount with 2-5/16" Ball (2" Shank, 7,500 lbs., 4" Drop)
- Assure Proportional Trailer Brake Controller with Dynamic Screen
- Installation instructions, schematics, diagrams, and hardware (if required).
List of Fitment Years:
2020, 2021, 2022, 2023, 2024
CURT 13564 Class 3 Trailer Hitch, 2-Inch Receiver
Manufactured by: Curt
Whatever your task at hand -- whether it's launching that boat before daybreak, setting up your camper before the rush or getting a final load to the dump before close -- CURT class 3 trailer hitches offer the strength needed for serious towing They make it easy to hitch up and Bring It, offering a vehicle-specific fit and the weight capacity to handle a variety of trailers Custom class 3 hitches are the most common type of receiver hitch for pickup trucks and SUVs.
Because of their weight range, they are also found on full-size cars, crossovers and minivans Each custom-fit class 3 hitch package is made for vehicle-specific mounting This particular kit fits certain years of the Jeep Wrangler JL EcoDiesel (see application info to verify vehicle compatibility).
It provides a weight carrying capacity of 3,500 lbs GTW and 350 lbs TW.
It is also compatible with a weight distribution hitch for level towing and a rating of 4,000 lbs WD and 400 lbs WDTW.
CURT class 3 trailer hitches are typically used to attach and haul utility trailers, boat trailers, campers, snowmobile or ATV haulers and more (NOTE: Never exceed the lowest-rated towing component) Each class 3 hitch has a 2" receiver tube and is tested in accordance with SAE J684 for safety To ensure that CURT class 3 receiver hitches have what it takes for serious trailering, they are designed using a hands-on approach and are constructed with rugged, high-strength steel and precise welding.
We also protect our class 3 hitches in a co-cured finish of liquid A-coat and black powder coat for superior resistance to rust, chipping and UV damage..
Features:
- Rated to 3,500 lbs. gross trailer weight and 350 lbs. tongue weight
- Compatible with weight distribution hitch (4,000 lbs. WD / 400 lbs. WDTW)
- Engineered with a vehicle-specific design for a custom fit
- Tested for safety in accordance with SAE J684
- Precisely welded for superior strength and fit
- Protected by a durable high-gloss black powder coat finish
- Co-cured in a rust-resistant liquid A-coat, inside and out
- Equipped with an open-back receiver for easy cleaning
- Limited lifetime warranty (one-year finish, one-year parts)
- Made in USA (may include imported hardware)
CURT 51527 Quick Plug Electric Trailer Brake Controller Wiring Harness
Manufactured by: Curt
A CURT Quick Plug brake controller wiring adapter is one of the fastest and easiest ways to plug your brake controller into your vehicle It requires no cutting or splicing! Just insert the vehicle-specific plug end into the OEM vehicle’s factory brake controller socket The other end plugs into your CURT trailer brake controller.
Quick Plug harnesses are available for a variety of vehicles and are unique for each vehicle application to provide the easiest possible installation This particular brake controller harness fits certain years of the Jeep Wrangler and Jeep Gladiator (see application info to verify fitment) CURT Quick Plug harnesses are compatible with most CURT brake controls and can be used as a replacement or for a new control unit installation.
They're also great for towing all types of trailers with electric brakes For versatile mounting of your trailer brake controller this Quick Plug wire harness measures two feet long It also features a slit loom sleeve to keep the wires protected against crushing and abrasions.
CURT Quick Plug wire plug-in adapters are made with 12-gauge wires for a reliable connection and braking, and come with zip ties to keep the harness contained and out of sight..
Features:
- Allows a CURT trailer brake controller to be plugged into OEM socket
- Quick plug harness installs with plug-and-play convenience
- Wire colors match standard brake controller harnesses
- Includes 24" of 12 gauge wire for flexible installation
- Slit-loom sleeve keeps wires contained and protected
CURT 56407 Vehicle-Side Custom 4-Pin Trailer Wiring Harness
Manufactured by: Curt
If your vehicle is not equipped with wiring for towing a trailer, CURT custom wiring is the ideal solution A custom wiring harness -- also called a T-connector -- is a simple, plug-and-play electrical device that plugs into your automotive electric system and provides a standard, universal trailer wiring connection This is done using two or more vehicle-specific, OEM-compatible connectors to plug into the taillight assembly, eliminating the need for cutting, splicing and soldering during installation.
Custom wiring harnesses are made vehicle-specific, and while they are not available for all vehicles, they do offer one of the fastest, easiest and most secure ways to wire a vehicle for towing This particular plug-in harness provides a 4-way flat connector socket and is designed to be a custom wiring harness to fit certain years of the Jeep Wrangler JL and Jeep Gladiator (to verify your vehicle compatibility, see application info) It comes with all necessary wiring components to establish a reliable trailer wiring connection, as well as a dust cover to keep the connector clean when not in use.
You have a picture in mind of your next destination -- maybe it's the boat landing at your favorite fishing spot, maybe it's a campsite that overlooks one of nature's masterpieces, or maybe it's the next big jobsite However, turning that picture into a reality takes more than just daydreaming It takes a solid connection and the right amount of power.
CURT custom wiring is made with some of the most sophisticated technology in the industry and is designed to install with ease, giving you a long-lasting electrical connection for your towing hitch setup..
Features:
- Plugs into vehicle tail light assembly to provide a 4-way flat socket
- Simple plug-and-play design eliminates the need for cutting or splicing
- 4-way flat output connects tail lights, brake lights and turn signals
- Equipped with tail light converter for vehicle-trailer compatibility
- Constructed with SMT circuitry for better performance and durability
- Dust cover included to keep connector clean when not in use
- Backed by a limited one-year warranty
CURT 57672 51500 58361 Dual-Output 4-Way Flat Vehicle-Side to 7-Way RV Blade Trailer Wiring Adapter, Electric Trailer Brake Controller Wiring Kit, and two 30-Amp Universal Circuit Breakers.
Manufactured by: Curt
Upgrade your towing setup with the ultimate conversion kit Transform your vehicle’s 4-way flat socket into a 7-way RV blade with ease This kit includes the CURT dual-output electrical adapter, trailer brake controller wiring kit, and a 30-amp universal circuit breaker.
Perfect for ensuring seamless connections and providing the power you need for safe, confident towing Get the job done with CURT's reliable and high-quality components..
Features:
- Adapts a 4-way flat socket to fit 4-way flat and 7-way RV blade trailer plugs
- Connects tail lights, brake lights, turn signals, reverse lights, brakes, and auxiliary power
- Dust covers included to keep connectors clean when not in use
- Slit loom keeps wires contained and well protected
- Metal bracket securely mounts wiring to the vehicle or trailer hitch
- Compatible with 2, 4, 6 or 8-brake systems (1-4 axles)
- Recommended for applications where over-current protection is required
CURT 45042 Trailer Hitch Mount with 2-5/16-Inch Ball & Pin, Fits 2-Inch Receiver, 7,500 lbs, 4-Inch Drop
Manufactured by: Curt
When it comes to ball mounts, a CURT loaded ball mount is the complete package These stingers come with all necessary towing components and are pre-fitted with a factory-torqued trailer ball, eliminating the need to mount and torque your own trailer ball This means a loaded ball mount is ready for towing right out of the package! Each one also comes with a pin and clip for mounting the ball mount into the appropriate size receiver tube.
CURT offers loaded ball mounts in a variety of styles and weight ratings This CURT loaded ball mount features a gross trailer weight capacity of 7,500 lbs and a tongue weight capacity of 750 lbs.
It comes with a 2-5/16" trailer ball, making it an excellent choice for towing most boat trailers, utility trailers, campers, livestock trailers and recreational vehicle trailers used for hauling dirt bikes, motorcycles and ATVs (NOTE: Never exceed the lowest weight capacity of any towing component; i.e the vehicle, hitch, trailer, etc) This ball mount also has a length of 8-1/4", a drop of 4" and comes with a gloss black powder coat finish to resist rust, chipping and UV damage.
All CURT loaded ball mounts feature 2" x 2" shanks and are made with the same superior quality we put into each of our products..
Features:
- Rated to 7,500 lbs. gross trailer weight and 750 lbs. tongue weight
- Fits trailer hitches with a 2" x 2" receiver tube opening
- Factory-torqued CURT trailer ball accepts a 2-5/16" coupler
- 4" drop for precise trailer leveling
- Hollow shank weighs less and can be used with an anti-rattle kit
- CNC-formed, robotically welded and mechanically descaled for a perfect fit
- Protected by a durable powder coat finish
- Trailer ball features a polished chrome-plated finish
- 5/8" hitch pin & clip for secure mounting in receiver tube
- Assembled in USA
- Limited lifetime warranty (one-year finish, one-year parts)
CURT 51160 Assure Electric Trailer Brake Controller with Dynamic Screen and Full Text Readout, Proportional
Manufactured by: Curt
The CURT Assure brake control comes with a pressure-sensitive manual override button, a 1-1/2" wide OLED display and a triple-axis motion-sensing accelerometer, all to empower your adventure and provide smooth, responsive stops every time The triple-axis accelerometer lays the foundation for this advanced electric brake controller, detecting the inertia of the vehicle and trailer on any grade This means that whether you are going up or down a hill, the Assure is able to produce the exact amount of brake power needed, compensating for the angle and motion of the vehicle.
The accelerometer also responsively adjusts this braking power as the vehicle slows down, putting the least amount of stress possible on your vehicle and trailer The Assure trailer brake controller also features a high-quality OLED screen, displaying brake activity and providing an interface for the driver to control and monitor the trailer brakes The display offers a clear picture with its 128 x 64 dot matrix screen, and the display can be tilted up for a clear visibility, whether the brake control is mounted above or below the dash.
The manual override of the Assure allows brake pressure to be applied any time and in any amount This can be used to help slow the vehicle down or correct trailer sway The override button is pressure sensitive, giving you complete control over the trailer brake power.
The CURT Assure can be used with two to eight trailer brakes, and it is compatible with ABS, cruise control, low-voltage systems and PWM systems It has built-in reverse-polarity and short-circuit protectors, as well as low voltage and trailer disconnect indicators Like all CURT brake controls, the Assure trailer brake controller installs using one of our vehicle-specific quick plug harnesses.
It also comes with mounting hardware for a complete installation and is backed by a limited lifetime warranty..
Features:
- Pressure-sensitive manual override button for precise braking power
- Large, high-quality 1-1/2" OLED screen displays full text readout
- Sleek, low-profile design with tactile buttons
- Triple-axis, motion-sensing accelerometer for highly responsive, smooth stops
- Third axis provides dynamic power adjustments when going up or down a hill
- Display can be tilted for different mounting options, above or below the dash
- Diagnostic alerts notify of potential problems like low voltage or disconnect
- Automatic leveling and calibration eliminate setup requirements
- Mounts at various angles, above or below the dash, to increase usability
- Nine levels of sensitivity adjustment for varying loads or driving conditions
- Auto sleep mode prevents battery drain
- Plug-and-play install with vehicle-specific quick plug harness (sold separately)
- Operates 2-8 trailer brakes at a time (1-4 axles)
- Built-in reverse-polarity and short-circuit protection
- Compatible with low-voltage systems, PWM systems, ABS and cruise control
Hitches Near Me: We operate out of several warehouses across the country, ensuring faster delivery to your location.
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Product Details
- Brand: Curt
- Model: 13564 51527 56407 57672 51500 58361 45042 51160-CH2541
- Includes: Class 3 Trailer Tow Hitch, Custom Wiring Harness, Trailer Brake Controller Harness, Dual-Output Electrical Adapter, Trailer Brake Controller Wiring Kit, 30-Amp Universal Circuit Breaker, Loaded Ball Mount with 2-5/16" Ball 2" Shank, Assure Proportional Trailer Brake Controller with Dynamic Screen
Compatibility Chart
Description
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For 2020-2024 Jeep Wrangler JL Tow Package Camp n' Field Trailer Hitch + Brake Controller Curt Assure 51160 Proportional Up To 4 Axles + 7 Way Trailer Wiring Plug & 2-5/16" ball 4 inch drop Fits Diesel Only Curt 13564 2 inch Tow Receiver Install Notes
Installation Instructions for Jeep Wrangler JL EcoDiesel
Part Numbers:
- 13564
Tools Required:
- Ratchet
- Torque wrench
- Sockets: 16mm, 14mm, 3/4"
- Die grinder
- Safety glasses
Important Notices:
- DEF Tank and Exhaust Lowering Required: The DEF tank and exhaust must be temporarily lowered for proper installation.
- Hole Enlargement: Some models may require enlarging existing holes in the frame for fastener fitment.
- Periodic Inspections Recommended: Regularly inspect the hitch and hardware to ensure all components remain tight and secure.
Step-by-Step Instructions:
Step 1: Remove Rear DEF Tank Bolts
- Using a 16mm socket, remove the two M10 x 1.5 bolts securing the rear of the DEF tank mount.
Step 2: Loosen Front DEF Tank Nuts
- Loosen, but do not fully remove, the two M8 x 1.25 nuts securing the front of the DEF tank mount using a 14mm socket.
- Lower the DEF tank for easier access during installation.
Step 3: Position Hitch
- Position the hitch over the cross member and align the hitch holes with the cross member holes.
- Insert the provided 1/2"-13 x 4-1/2" hex bolts (#1) and 1/2" flat washers (#2) through the holes. Secure with 1/2"-13 serrated-flange nuts (#3) on the exterior side of the hitch.
Step 4: Torque Fasteners
- Torque the 1/2" fasteners (#1) to 110 lb-ft.
- Raise the DEF tank back into position and torque the two M10 x 1.5 bolts to 51 lb-ft and the two M8 x 1.25 nuts to 25.5 lb-ft.
Hardware List:
- (4) Hex bolt, 1/2"-13 x 4-1/2", grade 8
- (4) Flat washer, 1/2"
- (4) Serrated-flange nut, 1/2"-13, grade 8
Safety Notes:
- Safety glasses should be worn at all times during installation.
- Never exceed the vehicle manufacturer's recommended towing capacity.
- Always adhere to specified torque values to avoid damage to the vehicle or hitch.
Specifications:
- Gross trailer weight (GTW): 5,000 lbs.
- Tongue weight (TW): 500 lbs.
- Weight distribution (WD): 4,000 lbs.
- WD tongue weight (WDTW): 400 lbs.
Installation Instructions
Part Numbers:
- 13564
Tools Required:
- Ratchet
- Torque wrench
- Sockets: 16mm, 14mm, 3/4"
- Die grinder
- Safety glasses
Important Notices:
- DEF Tank and Exhaust Lowering Required: The DEF tank and exhaust must be temporarily lowered for proper installation.
- Hole Enlargement: Some models may require enlarging existing holes in the frame for fastener fitment.
- Periodic Inspections Recommended: Regularly inspect the hitch and hardware to ensure all components remain tight and secure.
Step-by-Step Instructions:
Step 1: Remove Rear DEF Tank Bolts
- Using a 16mm socket, remove the two M10 x 1.5 bolts securing the rear of the DEF tank mount.
Step 2: Loosen Front DEF Tank Nuts
- Loosen, but do not fully remove, the two M8 x 1.25 nuts securing the front of the DEF tank mount using a 14mm socket.
- Lower the DEF tank for easier access during installation.
Step 3: Position Hitch
- Position the hitch over the cross member and align the hitch holes with the cross member holes.
- Insert the provided 1/2"-13 x 4-1/2" hex bolts (#1) and 1/2" flat washers (#2) through the holes. Secure with 1/2"-13 serrated-flange nuts (#3) on the exterior side of the hitch.
Step 4: Torque Fasteners
- Torque the 1/2" fasteners (#1) to 110 lb-ft.
- Raise the DEF tank back into position and torque the two M10 x 1.5 bolts to 51 lb-ft and the two M8 x 1.25 nuts to 25.5 lb-ft.
Hardware List:
- (4) Hex bolt, 1/2"-13 x 4-1/2", grade 8
- (4) Flat washer, 1/2"
- (4) Serrated-flange nut, 1/2"-13, grade 8
Safety Notes:
- Safety glasses should be worn at all times during installation.
- Never exceed the vehicle manufacturer's recommended towing capacity.
- Always adhere to specified torque values to avoid damage to the vehicle or hitch.
Specifications:
- Gross trailer weight (GTW): 5,000 lbs.
- Tongue weight (TW): 500 lbs.
- Weight distribution (WD): 4,000 lbs.
- WD tongue weight (WDTW): 400 lbs.
Attention: This is a summary of the installation procedure. For complete installation instructions, including diagrams and detailed information from the manufacturer, please download the full installation PDF.
For Technical Support: For technical support and assistance, our team of experts is available to help. You can reach our tech support by visiting www.trailerjacks.com or calling 877-869-6690.
Warranty:
This product comes with a limited warranty of [X] years. Coverage includes defects in materials and workmanship under normal use. For complete warranty instructions, please download the full installation PDF.
Installation Instructions for Jeep Wrangler and Gladiator
Part Numbers:
- 56407
Wiring Access Locations:
- SUVs and Vans:
- S1: Behind driver-side taillight housing
- S2: Behind passenger-side taillight housing
- Trucks:
- T1: Behind driver-side taillight housing
- T2: Behind passenger-side taillight housing
Tools Required:
- Ratchet
- Ratchet extension
- Torx bit (T-30)
- Wire stripper
- Wire crimper
- Flat blade screwdriver
- Cutting tool
- Fish wire
Step-by-Step Instructions:
Jeep Wrangler
Step 1: Disconnect the Battery
- Locate the vehicle battery and disconnect the negative terminal.
- Secure the negative wire away from the battery.
Step 2: Access the Trim Panel
- Open the tailgate.
- Use a flat blade screwdriver to remove the trim access cover on the rear corner of the vehicle.
Step 3: Remove the Taillight
- Remove the fastener securing the taillight using a T-30 Torx bit.
- Carefully pull the taillight straight back and disconnect the wiring harness.
- Repeat this step on the passenger side.
Step 4: Install the Custom Wiring Harness
- On the driver side, connect the yellow wire of the custom wiring harness to the factory wiring harness.
- Ensure all connectors are fully seated and the locking tabs are secure.
Step 5: Mount the Converter Box
- Select a clean, flat surface away from debris and spray.
- Use the provided double-sided tape to adhere the black converter box.
- Secure the white ground wire to the vehicle frame using the provided screw.
Step 6: Route Green Wire and 4-Flat Connector
- Route the green wire and 4-flat connector down and along the vehicle frame to the passenger side.
- Secure all wires using the provided cable ties.
Step 7: Connect Passenger-Side Wiring
- Insert the green wire of the custom wiring harness into the passenger-side factory wiring harness.
- Verify that the connectors are secure with locking tabs in place.
Step 8: Route and Secure Power Wire
- Route the black power wire from the battery to the wiring harness, avoiding pinch points, heat, and rotating components.
- Attach the ring terminal to the positive terminal of the battery.
Step 9: Test the System
- Reconnect the negative battery terminal.
- Test the wiring with a test light or trailer to confirm functionality.
Step 10: Reinstall Components
- Reinstall the taillights and trim panels removed earlier.
- Secure any loose wires using cable ties.
- Attach the provided 4-flat dust cover to prevent corrosion.
Jeep Gladiator
Step 1: Disconnect the Battery
- Locate the vehicle battery and disconnect the negative terminal.
- Secure the negative wire away from the battery.
Step 2: Remove Taillight Bolts
- Open the tailgate.
- Use an 8mm socket to remove the bolts securing the taillights.
Step 3: Remove the Taillight
- Carefully pull the taillight straight back and disconnect the wiring harness.
- Repeat this step on the passenger side.
Step 4: Install the Custom Wiring Harness
- On the driver side, connect the yellow wire of the custom wiring harness to the factory wiring harness.
- Ensure all connectors are fully seated and the locking tabs are secure.
Step 5: Mount the Converter Box
- Select a clean, flat surface away from debris and spray.
- Use the provided double-sided tape to adhere the black converter box.
- Secure the white ground wire to the vehicle frame using the provided screw.
Step 6: Route Green Wire and 4-Flat Connector
- Route the green wire and 4-flat connector down and along the vehicle frame to the passenger side.
- Secure all wires using the provided cable ties.
Step 7: Connect Passenger-Side Wiring
- Insert the green wire of the custom wiring harness into the passenger-side factory wiring harness.
- Verify that the connectors are secure with locking tabs in place.
Step 8: Route and Secure Power Wire
- Route the black power wire from the battery to the wiring harness, avoiding pinch points, heat, and rotating components.
- Attach the ring terminal to the positive terminal of the battery.
Step 9: Test the System
- Reconnect the negative battery terminal.
- Test the wiring with a test light or trailer to confirm functionality.
Step 10: Reinstall Components
- Reinstall the taillights and trim panels removed earlier.
- Secure any loose wires using cable ties.
- Attach the provided 4-flat dust cover to prevent corrosion.
Safety Notes:
- Do not exceed the product rating or the tow vehicle lamp load rating.
- Ensure the battery connection is fuse-protected (10-amp max).
- Avoid drilling into hidden areas to prevent damage or injury.
Specifications:
- Signal circuits: 3.0 amps per side
- Tail/running circuits: 6.0 amps total
- Compatible with 12-volt negative ground systems
Installation Instructions for Vehicle Models
Part Numbers:
- 56407
Wiring Access Locations:
- SUVs and Vans:
- S1: Behind driver-side taillight housing
- S2: Behind passenger-side taillight housing
- Trucks:
- T1: Behind driver-side taillight housing
- T2: Behind passenger-side taillight housing
Tools Required:
- Ratchet
- Ratchet extension
- Torx bit (T-30)
- Wire stripper
- Wire crimper
- Flat blade screwdriver
- Cutting tool
- Fish wire
Step-by-Step Instructions:
Jeep Wrangler
Step 1: Disconnect the Battery
- Locate the vehicle battery and disconnect the negative terminal.
- Secure the negative wire away from the battery.
Step 2: Access the Trim Panel
- Open the tailgate.
- Use a flat blade screwdriver to remove the trim access cover on the rear corner of the vehicle.
Step 3: Remove the Taillight
- Remove the fastener securing the taillight using a T-30 Torx bit.
- Carefully pull the taillight straight back and disconnect the wiring harness.
- Repeat this step on the passenger side.
Step 4: Install the Custom Wiring Harness
- On the driver side, connect the yellow wire of the custom wiring harness to the factory wiring harness.
- Ensure all connectors are fully seated and the locking tabs are secure.
Step 5: Mount the Converter Box
- Select a clean, flat surface away from debris and spray.
- Use the provided double-sided tape to adhere the black converter box.
- Secure the white ground wire to the vehicle frame using the provided screw.
Step 6: Route Green Wire and 4-Flat Connector
- Route the green wire and 4-flat connector down and along the vehicle frame to the passenger side.
- Secure all wires using the provided cable ties.
Step 7: Connect Passenger-Side Wiring
- Insert the green wire of the custom wiring harness into the passenger-side factory wiring harness.
- Verify that the connectors are secure with locking tabs in place.
Step 8: Route and Secure Power Wire
- Route the black power wire from the battery to the wiring harness, avoiding pinch points, heat, and rotating components.
- Attach the ring terminal to the positive terminal of the battery.
Step 9: Test the System
- Reconnect the negative battery terminal.
- Test the wiring with a test light or trailer to confirm functionality.
Step 10: Reinstall Components
- Reinstall the taillights and trim panels removed earlier.
- Secure any loose wires using cable ties.
- Attach the provided 4-flat dust cover to prevent corrosion.
Jeep Gladiator
Step 1: Disconnect the Battery
- Locate the vehicle battery and disconnect the negative terminal.
- Secure the negative wire away from the battery.
Step 2: Remove Taillight Bolts
- Open the tailgate.
- Use an 8mm socket to remove the bolts securing the taillights.
Step 3: Remove the Taillight
- Carefully pull the taillight straight back and disconnect the wiring harness.
- Repeat this step on the passenger side.
Step 4: Install the Custom Wiring Harness
- On the driver side, connect the yellow wire of the custom wiring harness to the factory wiring harness.
- Ensure all connectors are fully seated and the locking tabs are secure.
Step 5: Mount the Converter Box
- Select a clean, flat surface away from debris and spray.
- Use the provided double-sided tape to adhere the black converter box.
- Secure the white ground wire to the vehicle frame using the provided screw.
Step 6: Route Green Wire and 4-Flat Connector
- Route the green wire and 4-flat connector down and along the vehicle frame to the passenger side.
- Secure all wires using the provided cable ties.
Step 7: Connect Passenger-Side Wiring
- Insert the green wire of the custom wiring harness into the passenger-side factory wiring harness.
- Verify that the connectors are secure with locking tabs in place.
Step 8: Route and Secure Power Wire
- Route the black power wire from the battery to the wiring harness, avoiding pinch points, heat, and rotating components.
- Attach the ring terminal to the positive terminal of the battery.
Step 9: Test the System
- Reconnect the negative battery terminal.
- Test the wiring with a test light or trailer to confirm functionality.
Step 10: Reinstall Components
- Reinstall the taillights and trim panels removed earlier.
- Secure any loose wires using cable ties.
- Attach the provided 4-flat dust cover to prevent corrosion.
Safety Notes:
- Do not exceed the product rating or the tow vehicle lamp load rating.
- Ensure the battery connection is fuse-protected (10-amp max).
- Avoid drilling into hidden areas to prevent damage or injury.
Specifications:
- Signal circuits: 3.0 amps per side
- Tail/running circuits: 6.0 amps total
- Compatible with 12-volt negative ground systems
Additional Information:
- Attention: This is a summary of the installation procedure. For complete installation instructions, including diagrams and detailed information from the manufacturer, please download the full installation PDF.
Technical Support:
- For technical support and assistance, our team of experts is available to help. You can reach our tech support by visiting www.trailerjacks.com or calling 877-869-6690.
Warranty Information:
- For complete warranty instructions, please download the full installation PDF.
Installation Instructions for 4-Way to 7-Way Adapter and Brake Control Wiring
Tools Required:
- Phillips Head Screwdriver
- Drill with 3/32" Drill Bit
- 10mm Socket & Ratchet or Wrench
- Wire Crimpers
- Wire Cutters
- Test Light or Multimeter
- Cable Ties
Part 1: Install the 4-Way to 7-Way Adapter
Step-by-Step Instructions:
-
Mount the Adapter:
- Choose a suitable mounting point on the vehicle, typically near the hitch.
- Use the provided bracket and screws to secure the adapter.
-
Connect the 4-Flat Plug:
- Plug the 4-flat connector on the adapter into the existing 4-flat plug on the vehicle.
- This connection enables tail lights, left turn, and right turn signals.
-
Ground the Adapter:
- Locate a clean, solid grounding point near the adapter.
- Drill a 3/32" hole if necessary and secure the white ground wire from the adapter using the provided screw and eyelet.
-
Leave Additional Wires Disconnected:
- The following wires will remain disconnected until Part 2:
- Black Wire: Power from the battery.
- Blue Wire: Brake control output.
- Yellow Wire: Reverse light (optional; leave disconnected unless needed).
- The following wires will remain disconnected until Part 2:
-
Test Initial Connection:
- Use a test light or trailer to verify functionality of the 4-way connections (tail lights, turn signals).
Part 2: Install Brake Control Wiring
Step-by-Step Instructions:
-
Mount Circuit Breakers:
- Install two 30A circuit breakers on the firewall or another suitable location near the battery.
- Use self-tapping screws to mount them securely.
-
Route Power Wires:
- Connect the black 12-gauge wire from the 7-way adapter to the auxiliary side of one circuit breaker (this powers the 7-way socket).
- Run a heavy-gauge wire from the battery's positive terminal to the battery side of this circuit breaker, using a ring terminal.
- Run another heavy-gauge wire from the battery's positive terminal to the auxiliary side of the second circuit breaker (for the brake controller).
-
Install the Brake Controller:
- Mount the brake controller under the dash on a firm surface.
- Use the following connections:
- Red Wire: Connect to the cold side of the brake switch (active only when the brake pedal is pressed).
- Blue Wire: Connect to the blue wire on the 7-way adapter for trailer brakes.
- White Wire: Connect to a solid ground point on the vehicle body.
- Black Wire: Connect to the auxiliary side of the second 30A circuit breaker (provides power to the brake controller).
-
Optional: Connect Reverse Light Circuit:
- If the trailer has a reverse light circuit, connect the yellow wire from the 7-way adapter to the vehicle’s reverse light circuit.
-
Reconnect the Battery:
- Reattach the negative battery cable and ensure all connections are secure.
- Insert the fuses into both circuit breakers.
-
Secure All Wires:
- Use cable ties to secure all loose wires and prevent damage or rattling.
-
Test the System:
- Verify functionality of all circuits (running lights, turn signals, brake lights, and brake controller output).
- If applicable, test the reverse light circuit.
Notes:
- Most installations will only require connecting the black and blue wires from the 7-way adapter.
- Leave the yellow wire disconnected unless the trailer has a reverse light or surge brake lockout circuit.
- Always adhere to safety guidelines and verify all connections before use.
Warning: Incorrect wiring can cause damage to the vehicle or trailer. Test all connections carefully before use.
Installation Instructions for 4-Way to 7-Way Adapter and Brake Control Wiring
Tools Required:
- Phillips Head Screwdriver
- Drill with 3/32" Drill Bit
- 10mm Socket & Ratchet or Wrench
- Wire Crimpers
- Wire Cutters
- Test Light or Multimeter
- Cable Ties
Part 1: Install the 4-Way to 7-Way Adapter
Step-by-Step Instructions:
-
Mount the Adapter:
- Choose a suitable mounting point on the vehicle, typically near the hitch.
- Use the provided bracket and screws to secure the adapter.
-
Connect the 4-Flat Plug:
- Plug the 4-flat connector on the adapter into the existing 4-flat plug on the vehicle.
- This connection enables tail lights, left turn, and right turn signals.
-
Ground the Adapter:
- Locate a clean, solid grounding point near the adapter.
- Drill a 3/32" hole if necessary and secure the white ground wire from the adapter using the provided screw and eyelet.
-
Leave Additional Wires Disconnected:
- The following wires will remain disconnected until Part 2:
- Black Wire: Power from the battery.
- Blue Wire: Brake control output.
- Yellow Wire: Reverse light (optional; leave disconnected unless needed).
- The following wires will remain disconnected until Part 2:
-
Test Initial Connection:
- Use a test light or trailer to verify functionality of the 4-way connections (tail lights, turn signals).
Part 2: Install Brake Control Wiring
Step-by-Step Instructions:
-
Mount Circuit Breakers:
- Install two 30A circuit breakers on the firewall or another suitable location near the battery.
- Use self-tapping screws to mount them securely.
-
Route Power Wires:
- Connect the black 12-gauge wire from the 7-way adapter to the auxiliary side of one circuit breaker (this powers the 7-way socket).
- Run a heavy-gauge wire from the battery's positive terminal to the battery side of this circuit breaker, using a ring terminal.
- Run another heavy-gauge wire from the battery's positive terminal to the auxiliary side of the second circuit breaker (for the brake controller).
-
Install the Brake Controller:
- Mount the brake controller under the dash on a firm surface.
- Use the following connections:
- Red Wire: Connect to the cold side of the brake switch (active only when the brake pedal is pressed).
- Blue Wire: Connect to the blue wire on the 7-way adapter for trailer brakes.
- White Wire: Connect to a solid ground point on the vehicle body.
- Black Wire: Connect to the auxiliary side of the second 30A circuit breaker (provides power to the brake controller).
-
Optional: Connect Reverse Light Circuit:
- If the trailer has a reverse light circuit, connect the yellow wire from the 7-way adapter to the vehicle’s reverse light circuit.
-
Reconnect the Battery:
- Reattach the negative battery cable and ensure all connections are secure.
- Insert the fuses into both circuit breakers.
-
Secure All Wires:
- Use cable ties to secure all loose wires and prevent damage or rattling.
-
Test the System:
- Verify functionality of all circuits (running lights, turn signals, brake lights, and brake controller output).
- If applicable, test the reverse light circuit.
Notes:
- Most installations will only require connecting the black and blue wires from the 7-way adapter.
- Leave the yellow wire disconnected unless the trailer has a reverse light or surge brake lockout circuit.
- Always adhere to safety guidelines and verify all connections before use.
Warning: Incorrect wiring can cause damage to the vehicle or trailer. Test all connections carefully before use.
Attention:
This is a summary of the installation procedure. For complete installation instructions, including diagrams and detailed information from the manufacturer, please download the full installation PDF.
Warranty Information:
For complete warranty instructions, please download the full installation PDF.
Technical Support:
For technical support and assistance, our team of experts is available to help. You can reach our tech support by visiting www.trailerjacks.com or calling 877-869-6690.
Installation Instructions for Jeep Wrangler JL and Jeep Gladiator
Part Numbers:
- 51527
Wiring Access Location:
- Under dash, left of the steering column, near the emergency brake pedal
Tools Required:
- None
Step-by-Step Instructions:
Step 1: Locate the vehicle brake control harness connector
- Find the 4-pin electric brake control harness connector under the dash, to the left of the steering column.
- It will be taped to another harness near the emergency brake pedal and will mate with the brake control adapter.
Step 2: Connect the brake control adapter
- Plug the brake control adapter into the vehicle’s electric controller connector.
- Use butt connectors to attach the adapter wires to the corresponding wires on the electric brake control, following the brake control manufacturer’s instructions.
Step 3: Complete installation and mount the brake control unit
- Complete the installation using the manufacturer’s instructions.
- Mount the brake control unit as directed.
- Perform the recommended test procedures to verify functionality.
Safety Notes:
- Vehicles not equipped with an OEM trailer tow package may require fuses and relays to complete output and battery feed circuits (sold separately).
- Consult the owner’s manual for specific fuse and relay locations.
- Do not exceed the towing manufacturer’s rating or the following limits:
- Maximum 4 axles: 8 brakes (24 amps).
- Always wear safety glasses and follow all safety precautions during installation.
- Overloading circuits can cause fires.
Installation Instructions for Vehicles with Electric Brake Control
Part Numbers:
- 51527
Wiring Access Location:
- Under dash, left of the steering column, near the emergency brake pedal
Tools Required:
- None
Step-by-Step Instructions:
Step 1: Locate the vehicle brake control harness connector
- Find the 4-pin electric brake control harness connector under the dash, to the left of the steering column.
- It will be taped to another harness near the emergency brake pedal and will mate with the brake control adapter.
Step 2: Connect the brake control adapter
- Plug the brake control adapter into the vehicle’s electric controller connector.
- Use butt connectors to attach the adapter wires to the corresponding wires on the electric brake control, following the brake control manufacturer’s instructions.
Step 3: Complete installation and mount the brake control unit
- Complete the installation using the manufacturer’s instructions.
- Mount the brake control unit as directed.
- Perform the recommended test procedures to verify functionality.
Safety Notes:
- Vehicles not equipped with an OEM trailer tow package may require fuses and relays to complete output and battery feed circuits (sold separately).
- Consult the owner’s manual for specific fuse and relay locations.
- Do not exceed the towing manufacturer’s rating or the following limits:
- Maximum 4 axles: 8 brakes (24 amps).
- Always wear safety glasses and follow all safety precautions during installation.
- Overloading circuits can cause fires.
For complete installation instructions, including diagrams and detailed information from the manufacturer, please download the full installation PDF.
For technical support and assistance, our team of experts is available to help. You can reach our tech support by visiting www.trailerjacks.com or calling 877-869-6690.
Installation Instructions for Brake Controller
Product Information:
- Application: For trailers with 2 to 8 brakes
- System: 12-volt negative ground systems
Package Contents:
- (1) Brake Controller Module with Quick Plug
- (1) Mounting Bracket
- (2) Keyed Spacers
- (4) Mounting Bracket Screws
- (1) Quick Reference Card
- (2) Keyed Washers
Tools Required:
- Drill with 1/8" drill bit
- Wire Crimpers
- Wire Cutters
- Phillips Head Screwdriver
Key Features:
- Display for output and sensitivity settings
- Manual trailer braking control
- Switchable manual control options (100% or output setting)
- Brake light activation switch
- Reverse voltage and overload protection
- Compatible with electric and hydraulic trailer brake systems
Warnings and Important Notes:
- The brake controller’s positive and ground wires must connect directly to the vehicle’s battery with 10-gauge stranded wire.
- Avoid mounting near a CB radio or other RF transmitters.
- Disconnect the trailer plug when testing a breakaway switch.
Step-by-Step Installation Instructions:
1. Select the Mounting Location:
- The mounting location should be:
- Within the driver’s reach
- On a solid surface
- Free of obstructions behind the mounting surface
2. Install the Mounting Bracket:
- Position the bracket and mark the mounting holes.
- Drill holes using a 1/8” drill bit.
- Secure the bracket with the provided self-tapping screws (do not overtighten).
3. Attach the Brake Controller:
- Place the keyed spacer and washer on each side of the mounting bracket.
- Slide the brake controller into the bracket and secure it with screws.
4. Wiring the Brake Controller:
- Black Wire (Power Input): Connect to the positive (+) battery terminal through a 30-amp auto-reset circuit breaker.
- White Wire (Ground): Connect directly to the negative (-) battery terminal.
- Red Wire (Stoplight Input): Connect to the stoplight wire that is “hot” only when the brake pedal is pressed.
- Use a test probe to verify the correct wire.
- Blue Wire (Brake Output): Connect to the trailer’s brake control wire through the 7-way connector.
Switch Settings (Manual Control Configuration):
-
Brake Light Activation Switch:
- ON: Activates brake lights when the manual control is used (default).
- OFF: Brake lights remain inactive during manual braking.
-
Manual Brake Output Switch:
- ON: Limits manual braking to the gain (output) setting.
- OFF: Allows 100% braking power regardless of the output setting.
Setup and Calibration:
-
Connect the Trailer:
- Plug the trailer connector into the vehicle’s 7-way outlet.
- The controller will calibrate automatically, displaying "Calibration" followed by "Connected."
-
Set Initial Output and Sensitivity:
- Set the output to 2.0 and sensitivity (load) to 1.0 using the (+) and (-) buttons.
-
Test Drive and Adjust:
- Drive on a level surface at 25 mph.
- Press the brake pedal:
- Increase Output: If trailer braking feels insufficient.
- Decrease Output: If trailer brakes lock up.
- Adjust sensitivity for smoother stops using the (+) and (-) buttons.
Display Indicators:
| Indicator | Description |
|---|---|
| Connected | Trailer connected, standby mode |
| Not Connected | No trailer detected |
| Low Volt | Tow vehicle system voltage is low |
| Overload | Trailer brake system fault detected |
| Short | Stoplight wire shorted to ground |
| Error | Accelerometer error |
| Disconnect | Trailer disconnected |
Troubleshooting Guide:
- Display is Blank: Check power and ground connections.
- Display Shows "Low Volt": Verify vehicle’s battery and charging system.
- "Overload" Error: Inspect the blue wire and trailer brake circuit for shorts.
- No Trailer Brakes: Confirm proper wiring of the trailer connector.
Final Notes:
- Secure all loose wires with cable ties.
- Periodically test the system for proper operation.
- Avoid exceeding the towing vehicle's maximum electrical capacity.
Attention: This is a summary of the installation procedure. For complete installation instructions, including diagrams and detailed information, download the full installation PDF.
For Technical Support: Our team of experts is available to help. You can reach tech support by visiting www.trailerjacks.com or calling 877-869-6690.
