For 2019‑2024 Ram 1500 Classic 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 Except factory receiver Curt 14374 2 inch Tow Receiver
Model: 14374 51457 56229 55774 45311 21500 40178 51160-CH3231This Trailer Tow Hitch + Brake Controller + 7-Way Wiring + 2-5/16" Ball + 4" Drop + Bracket Fits The Following Vehicles:
2019 - 2024 Ram 1500 Classic All Models
This Trailer Tow Hitch + Brake Controller + 7-Way Wiring + 2-5/16" Ball + 4" Drop + Bracket Includes the Following Parts:
- Class 4 Trailer Hitch, 2" Receiver (Easy Bolt-On, No Drilling)
- Trailer Brake Controller Harness
- Replacement USCAR Socket with 24" Wires (Hardwire into OEM Cluster Harness) and Dual-Output 7 & 4-Way Connector (Plugs into USCAR)
- Class 4 Ball Mount 2" Shank, 10000 lbs. 4" Drop, 9-3/8" Long and 2-5/16" Trailer Ball 1-1/4" x 2-5/8" Shank, 15,000 lbs., Chrome, Packaged
- Assure Proportional Trailer Brake Controller with Dynamic Screen
- Installation instructions, schematics, diagrams, and hardware (if required).
List of Fitment Years:
2019, 2020, 2021, 2022, 2023, 2024
CURT 14374 Class 4 Trailer Hitch, 2-Inch Receiver
Manufactured by: Curt
Whatever the next item is on your to-do list -- whether it's arriving at the jobsite before dawn or getting your travel trailer set up in time to see the sunset -- CURT class 4 trailer hitches offer greater towing power to let you Bring It These custom receiver hitches are built to tackle bigger jobs and bolder adventures, all while giving you a custom fit for your vehicle Class 4 hitches are available for a variety of makes and models, from pickup trucks and SUVs to full-size and commercial vans.
This particular class 4 hitch fits certain years of the Ram 1500 and Dodge Ram 1500 (to verify vehicle compatibility, see application info) It provides a weight carrying capacity of 10,000 lbs GTW and 1,000 lbs.
TW It can also accept a weight distributing hitch, offering a maximum WD capacity of 12,000 lbs and a WDTW of 1,200 lbs.
CURT class 4 tow hitches are as much suited for work as they are for play With their high load capacities, they are typically used for towing larger trailers, including everything from a double-axle utility trailer or livestock trailer to a full-length camper or large boat trailer (NOTE: Never exceed the lowest weight capacity of any towing component) All CURT class 4 receiver hitches come with a 2" receiver tube opening and all the necessary hardware for a complete installation.
From light-duty to heavy-duty, every CURT custom hitch is engineered to be vehicle-specific, using actual vehicles to create the optimal design We then combine high-strength steel, precise welding and a co-cured finish of liquid A-coat and durable black powder coat to provide you with a hitch you can depend on To prove it, we test all our hitches in accordance with SAE J684 for safety..
Features:
- Rated to 10,000 lbs. gross trailer weight and 1,000 lbs. tongue weight
- Compatible with weight distribution hitch (12,000 lbs. WD / 1,200 lbs. WDTW)
- Engineered with a vehicle-specific design for a custom fit
- Concealed main body for OE look and seamless integration with the vehicle
- 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 51457 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 Ram 1500, 1500 Classic, 2500, 3500, 4500 and 5500 (without factory integrated brake controller ITBC) (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 NOTE: Software in vehicle must be updated by dealership in order to accept an aftermarket brake controller Failure to update may result in damage to vehicle..
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 56229 Replacement USCAR Connector Wiring Harness, 24-Inch Wires, 7-Pin Trailer Wiring and CURT 55774 Dual-Output Vehicle-Side 7-Pin, 4-Pin Connectors, Factory Tow Package and USCAR Socket Required
Manufactured by: Curt
A CURT custom wiring connector (sometimes called a T-connector) is a simple, plug-and-play electrical device that eliminates the need for cutting, splicing and soldering when installing vehicle-to-trailer wiring Most vehicles do not come ready to tow Unless your vehicle has a towing package, it is probably not equipped with a trailer wiring connector.
This is where CURT's custom wiring connectors come into play A custom wiring connector uses a single original equipment plug to plug into a special socket provided by your vehicle Though this option is not available on every vehicle, some automotive manufacturers design their vehicles to be easily equipped for towing by supplying a socket, integrated into the vehicle's electrical system, to readily accept a custom wiring connector.
With a CURT custom wiring connector, there is no need to tap into the taillight assembly because a special socket is already provided This special custom wiring connector actually provides two connector sockets for a multipurpose option It plugs into an OEM connector and offers a 4-way flat and 7-way RV blade connector.
It comes with a mounting bracket for easy installation and is designed to be a custom wiring option for a variety of vehicles (see application info to verify fitment) CURT custom wiring connectors are designed to be long-lasting and simple to install They come with dust covers to keep your connector clean when not in use..
Features:
- Replacement USCAR Socket with 24" Wires (Vehicle Side)
- Replaces damaged or missing USCAR vehicle harness
- Includes 24" color-coded, bonded wires for easy installation
- Dual-Output 7 & 4-Way Connector (Plugs into USCAR)
- Plugs into USCAR socket to provide 4-way and 7-way trailer wiring connectors
- Fits USCAR-equipped vehicles with factory tow plugs only
- Simple plug-and-play design eliminates the need for cutting or splicing
- 4-way flat output connects tail lights, brake lights and turn signals
- 7-way RV blade socket adds reverse lights, electric 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
- Backed by a limited one-year warranty
CURT 45311-21500-40178 Class 4 Trailer Hitch Ball Mount and 2-5/16" Ball, Fits 2-Inch Receiver, 10,000 lbs, 1-1/4-Inch Hole, 4-Inch Drop, 2-3/4-Inch Rise w/ CURT 40178 2-5/16-Inch Chrome Trailer Hitch Ball, 15,000 lbs, 1-1/4 x 2-5/8-Inch Shank, Packaged
Manufactured by: Curt
The CURT 2-5/16-inch trailer ball is constructed with precision, finished for longevity, and tested for maximum confidence in your towing setup This tow ball is rated for 15,000 pounds gross trailer weight and has a 2-5/16-inch diameter ball to couple to a 2-5/16-inch trailer coupler The stem of this hitch ball is 1-1/4 inches in diameter and 2-5/8 inches long, providing an excellent complement to most class 5 hitches.
The shank is constructed with fine threads for enhanced torqueing and holding strength Made from high-strength steel and covered in a chrome finish for corrosion resistance, this 2-5/16-inch trailer hitch ball is thoroughly tested according to VESC specifications for safety When you demand more from your towing equipment, CURT class 4 ball mounts answer the call.
Our heavy-duty ball mounts are constructed from quality steel and feature a 2" x 2" shank, built to complement CURT class 4 trailer hitches and perfect for towing large boat trailers, RVs, livestock and horse trailers, as well as a variety of other farm and industrial-type trailers Note: Never exceed the lowest weight capacity of any towing component; i.e., the vehicle, hitch, trailer, etc With a few different drop height options and the ability to flip for optional rise, CURT class 4 ball mounts are built to work as hard as you do, from sunup to sundown.
This class 4 ball mount has a gross trailer weight capacity of 10,000 lbs and tongue weight rating of 1,000 lbs., with a standard drop of 4" or can be flipped to provide 2-3/4" of rise It also features a hollow shank, allowing an anti-rattle hitch pin or lock to be used for reduced noise and vibration.
As with most of our ball mount line, CURT class 4 ball mounts are CNC-formed, robotically welded, and mechanically descaled to create a flawless product We finish our heavy-duty ball mounts in a gloss black powder coat to give them superior rust, chip, and UV resistance They also come with a 1-1/4" ball hole to accept a trailer ball with a 1-1/4" shank.
When you mount a ball mount on your trailer hitch, you expect it to stay put Whatever type of load you are hauling, having towing equipment that can work as hard as you do is a must For all types of heavy-duty towing, CURT 5/8" hitch pins and clips pack a little extra punch.
We make our 5/8" hitch pins out of solid steel and coat them in one of four finish options All of these finishes offer excellent resistance to rust and corrosion for long-lasting, smooth operation CURT hitch pins are also constructed with a 105-degree bend, creating a useful handle for a better grip and allowing the pin to stay securely engaged in the trailer hitch and ball mount.
This particular 5/8" hitch pin features a zinc finish and comes with a standard retainer hole to accept the included clip It provides reliable installation for any ball mount or hitch-mounted accessory with a 2" shank, making it the perfect fit for class 3, 4, and 5 trailer hitches..
Features:
- Fits trailer hitches with a 2" x 2" receiver tube opening
- Equipped with a 1-1/4" hole to accept a trailer ball shank
- 4" drop or 2-3/4" rise for precise trailer leveling
- Hollow shank weighs less and can be used with an anti-rattle hitch pin
- CNC-formed, robotically welded and mechanically descaled for a perfect fit
- Protected by a durable powder coat finish
- Made in USA
- Fits 2-5/16" couplers and accepts up to 15,000 lbs. GTW
- Constructed from high-strength, hot-forged steel
- Heat-treated for optimum wear resistance
- Protected by a durable chrome-plated finish
- Zinc-plated hex nut and helical lock washer for secure mounting
- Features fine threads for superior holding strength
- Tested for safety to meet U.S. VESC V-5 specifications
- Limited lifetime warranty (one-year finish, one-year parts)
- 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: 14374 51457 56229 55774 45311 21500 40178 51160-CH3231
- Includes: Class 4 Trailer Tow Hitch, Replacement USCAR Socket with 24" Wires, Dual-Output 7 & 4-Way Connector Plugs into USCAR, Trailer Brake Controller Harness, Class 4 Ball Mount 2" Shank, 5/8" Hitch Pin 2" Receiver, 2-5/16" Trailer Ball 1-1/4" x 2-5/8" Shank, Assure Proportional Trailer Brake Controller with Dynamic Screen
Compatibility Chart
Description
Get Expert Help
For 2019-2024 Ram 1500 Classic 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 Except factory receiver Curt 14374 2 inch Tow Receiver Install Notes
Installation Instructions for Dodge Ram 1500 Without OEM Hitch
Part Numbers:
- 14374
Tools Required:
- Socket Wrench
- Torque Wrench
- 21mm Socket
- 3/4" Socket
- 6" Socket Extension
Hardware List:
- Carriage Bolt: 1/2-13 x 1-1/2", Grade 8, YZ (Qty: 4)
- Flange Nut: 1/2-13 UNC, Grade 8, YZ (Qty: 4)
- Square Hole Spacer: 0.188 x 1.00 x 3.00" (CM-SP40) (Qty: 2)
- Square Hole Spacer: 0.250 x 1.50 x 3.00" (CM-SP4) (Qty: 2)
- Fishwire: 1/2" x 30" (Qty: 1)
Step-by-Step Instructions:
-
Lower Spare Tire:
- Lower the spare tire for ease of installation.
-
Remove Existing Bolts:
- Remove the M14 bolts securing the bumper beam to the frame rails on both sides.
- Save these bolts for use in Step 6.
-
Reverse Fishwire Carriage Bolts:
- Reverse fishwire the 1/2-13 x 1-1/2" carriage bolts and CM-SP40 spacers through the large round holes in the driver and passenger-side frame rails.
- Follow the Reverse Pull Fishwire Technique diagram for proper execution.
-
Fishwire Carriage Bolts Through Bumper Beam:
- Fishwire the remaining 1/2-13 x 1-1/2" carriage bolts and CM-SP4 spacers through the ends of the bumper beam.
- Pull them out through the slot at the front of the bumper beam. Refer to the Fishwire Technique Diagram for guidance.
-
Raise the Hitch into Position:
- Position the hitch into place, aligning it with the carriage bolts in the frame and bumper beam.
- Loosely install the provided 1/2-13 hex flange nuts onto the carriage bolts.
-
Reinstall Existing Bolts:
- Reinstall the M14 bolts removed in Step 2 to secure the bumper beam and hitch to the frame.
-
Torque Fasteners:
- Torque all 1/2" hardware to 110 lb-ft.
- Torque all M14 hardware to 126 lb-ft.
-
Raise Spare Tire:
- Return the spare tire to its original position.
Safety Notes:
- No Drilling Required: Installation uses existing holes in the bumper beam and frame rails.
- Fishwire Technique: Use the fishwire tool carefully to avoid losing hardware inside the frame rails.
- Periodically inspect the hitch to ensure all fasteners remain tight and components are structurally sound.
Specifications:
- Gross Load Capacity (Weight Carrying Hitch):
- Trailer Weight: 10,000 lbs
- Tongue Weight: 1,000 lbs
- Gross Load Capacity (Weight Distribution Hitch):
- Trailer Weight: 12,000 lbs
- Tongue Weight: 1,200 lbs
- Hitch Weight: 49 lbs
Installation Time:
- Professional: 30 minutes
- Novice (DIY): 60 minutes
Manufacturer Notes:
- For installation questions, contact Technical Support at 1-877-287-8634.
- Product Warranty: Curt Manufacturing Inc. guarantees this product to be free from defects in material and workmanship.
Warning: Do not exceed the vehicle manufacturer's recommended towing capacity.
Installation Instructions for Dodge Ram 1500 Without OEM Hitch
Part Numbers:
- 14374
Tools Required:
- Socket Wrench
- Torque Wrench
- 21mm Socket
- 3/4" Socket
- 6" Socket Extension
Hardware List:
- Carriage Bolt: 1/2-13 x 1-1/2", Grade 8, YZ (Qty: 4)
- Flange Nut: 1/2-13 UNC, Grade 8, YZ (Qty: 4)
- Square Hole Spacer: 0.188 x 1.00 x 3.00" (Qty: 2)
- Square Hole Spacer: 0.250 x 1.50 x 3.00" (Qty: 2)
- Fishwire: 1/2" x 30" (Qty: 1)
Step-by-Step Instructions:
-
Lower Spare Tire:
- Lower the spare tire for ease of installation.
-
Remove Existing Bolts:
- Remove the M14 bolts securing the bumper beam to the frame rails on both sides.
- Save these bolts for use in Step 6.
-
Reverse Fishwire Carriage Bolts:
- Reverse fishwire the 1/2-13 x 1-1/2" carriage bolts and spacers through the large round holes in the driver and passenger-side frame rails.
- Follow the Reverse Pull Fishwire Technique diagram for proper execution.
-
Fishwire Carriage Bolts Through Bumper Beam:
- Fishwire the remaining 1/2-13 x 1-1/2" carriage bolts and spacers through the ends of the bumper beam.
- Pull them out through the slot at the front of the bumper beam. Refer to the Fishwire Technique Diagram for guidance.
-
Raise the Hitch into Position:
- Position the hitch into place, aligning it with the carriage bolts in the frame and bumper beam.
- Loosely install the provided 1/2-13 hex flange nuts onto the carriage bolts.
-
Reinstall Existing Bolts:
- Reinstall the M14 bolts removed in Step 2 to secure the bumper beam and hitch to the frame.
-
Torque Fasteners:
- Torque all 1/2" hardware to 110 lb-ft.
- Torque all M14 hardware to 126 lb-ft.
-
Raise Spare Tire:
- Return the spare tire to its original position.
Safety Notes:
- No Drilling Required: Installation uses existing holes in the bumper beam and frame rails.
- Fishwire Technique: Use the fishwire tool carefully to avoid losing hardware inside the frame rails.
- Periodically inspect the hitch to ensure all fasteners remain tight and components are structurally sound.
Specifications:
- Gross Load Capacity (Weight Carrying Hitch):
- Trailer Weight: 10,000 lbs
- Tongue Weight: 1,000 lbs
- Gross Load Capacity (Weight Distribution Hitch):
- Trailer Weight: 12,000 lbs
- Tongue Weight: 1,200 lbs
- Hitch Weight: 49 lbs
Installation Time:
- Professional: 30 minutes
- Novice (DIY): 60 minutes
Manufacturer Notes:
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 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:
- Warranty covers defects in material and workmanship at the time of purchase. For complete warranty instructions, please download the full installation PDF.
Warning: Do not exceed the vehicle manufacturer's recommended towing capacity.
Installation Instructions for USCAR Replacement Socket and 7-Way Connector
Tools Required:
- Phillips Head Screwdriver
- Adjustable Wrench
- Test Light or Multimeter
- Wire Crimpers
- Cable Ties (optional)
Overview:
This guide provides instructions for installing a USCAR replacement socket and a 7-way connector. The USCAR socket connects to your vehicle’s wiring harness and serves as the interface for the 7-way connector, enabling trailer lighting and braking functions.
Step-by-Step Instructions:
Part 1: Install the USCAR Replacement Socket
-
Locate the Vehicle Wiring Harness:
- Identify the vehicle body harness, typically located along the driver-side frame rail or under the bed near the taillights.
- Use a test light or multimeter to confirm the function of each circuit in the harness:
- White Wire: Ground (-)
- Black Wire: Power (+)
- Blue Wire: Brake Controller Output
- Brown Wire: Tail Lights
- Yellow Wire: Left Turn Signal and Brake
- Green Wire: Right Turn Signal and Brake
- Red Wire: Auxiliary or Reverse Lights
-
Connect the Wires:
- Match the wires from the USCAR replacement socket harness to the corresponding vehicle harness wires based on function, not color.
- Use the provided splice connectors or butt connectors to secure each connection.
- For thicker gauge wires, use the yellow connectors included in the kit.
- Ensure the white ground wire is connected to a clean, solid grounding point on the vehicle’s frame using a self-tapping screw and ring terminal.
-
Mount the USCAR Socket:
- Attach the USCAR socket to the mounting bracket using the screws and nuts provided.
- Secure the mounting bracket to the hitch or vehicle frame using the provided hardware.
-
Test the USCAR Socket:
- Use a test light or trailer to verify the socket’s functionality before proceeding.
Part 2: Install the 7-Way Connector
-
Plug in the 7-Way Connector:
- Align the connector from the 7-way assembly with the USCAR socket and push it in until it clicks securely.
-
Mount the 7-Way Connector:
- Attach the 7-way connector to the bracket using the provided screws and nuts.
- Ensure the spring-loaded cover is facing upward to protect the connector from water and debris.
-
Secure the Wiring:
- Use cable ties to secure any loose wiring to prevent damage or interference with vehicle components.
-
Test the 7-Way Connector:
- Verify each function of the 7-way connector using a test light or trailer:
- Brown Wire: Tail Lights
- Yellow Wire: Left Turn Signal and Brake
- Green Wire: Right Turn Signal and Brake
- Blue Wire: Trailer Brake Control
- Black Wire: Auxiliary Power
- Red Wire: Reverse Lights
- White Wire: Ground
- Verify each function of the 7-way connector using a test light or trailer:
Notes:
- Always match wires by function, not color, to ensure proper connections.
- Confirm all circuits are functional before securing the wiring permanently.
- Use cable ties to neatly bundle and secure the wiring.
Warning: Incorrect wiring or overloaded circuits can cause electrical damage or fire. Test all connections thoroughly before towing.
Installation Instructions for USCAR Replacement Socket and 7-Way Connector
Tools Required:
- Phillips Head Screwdriver
- Adjustable Wrench
- Test Light or Multimeter
- Wire Crimpers
- Cable Ties (optional)
Overview:
This guide provides instructions for installing a USCAR replacement socket and a 7-way connector. The USCAR socket connects to your vehicle’s wiring harness and serves as the interface for the 7-way connector, enabling trailer lighting and braking functions.
Step-by-Step Instructions:
Part 1: Install the USCAR Replacement Socket
-
Locate the Vehicle Wiring Harness:
- Identify the vehicle body harness, typically located along the driver-side frame rail or under the bed near the taillights.
- Use a test light or multimeter to confirm the function of each circuit in the harness:
- White Wire: Ground (-)
- Black Wire: Power (+)
- Blue Wire: Brake Controller Output
- Brown Wire: Tail Lights
- Yellow Wire: Left Turn Signal and Brake
- Green Wire: Right Turn Signal and Brake
- Red Wire: Auxiliary or Reverse Lights
-
Connect the Wires:
- Match the wires from the USCAR replacement socket harness to the corresponding vehicle harness wires based on function, not color.
- Use the provided splice connectors or butt connectors to secure each connection.
- For thicker gauge wires, use the yellow connectors included in the kit.
- Ensure the white ground wire is connected to a clean, solid grounding point on the vehicle’s frame using a self-tapping screw and ring terminal.
-
Mount the USCAR Socket:
- Attach the USCAR socket to the mounting bracket using the screws and nuts provided.
- Secure the mounting bracket to the hitch or vehicle frame using the provided hardware.
-
Test the USCAR Socket:
- Use a test light or trailer to verify the socket’s functionality before proceeding.
Part 2: Install the 7-Way Connector
-
Plug in the 7-Way Connector:
- Align the connector from the 7-way assembly with the USCAR socket and push it in until it clicks securely.
-
Mount the 7-Way Connector:
- Attach the 7-way connector to the bracket using the provided screws and nuts.
- Ensure the spring-loaded cover is facing upward to protect the connector from water and debris.
-
Secure the Wiring:
- Use cable ties to secure any loose wiring to prevent damage or interference with vehicle components.
-
Test the 7-Way Connector:
- Verify each function of the 7-way connector using a test light or trailer:
- Brown Wire: Tail Lights
- Yellow Wire: Left Turn Signal and Brake
- Green Wire: Right Turn Signal and Brake
- Blue Wire: Trailer Brake Control
- Black Wire: Auxiliary Power
- Red Wire: Reverse Lights
- White Wire: Ground
- Verify each function of the 7-way connector using a test light or trailer:
Notes:
- Always match wires by function, not color, to ensure proper connections.
- Confirm all circuits are functional before securing the wiring permanently.
- Use cable ties to neatly bundle and secure the wiring.
Warning: Incorrect wiring or overloaded circuits can cause electrical damage or fire. Test all connections thoroughly before towing.
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 Ram Vehicles
Part Numbers:
- 51457
Wiring Access Location:
- BH2 - Under dash, to the right of the steering column
Step-by-Step Instructions:
Step 1: Locate the vehicle brake control harness connector
- Find the grey, 4-pin vehicle brake control harness connector under the dash, to the right of the steering wheel.
- It will be taped to another harness and will resemble the CURT brake control harness.
- Remove any foam padding from the connector if present.
Step 2: Connect the CURT harness to the vehicle connector
- Insert the CURT brake control harness connector into the vehicle connector.
- Ensure the connector is fully inserted and the locking tabs are secure (A).
Step 3: Connect to the brake control unit
- Attach the brake control harness's black connector to the brake control's quick plug connector (B).
- Secure the harness using the provided cable ties, avoiding pinch points.
Step 4: Mount and test the brake control unit
- Mount the brake control unit as directed in its user manual.
- Perform the recommended test procedures to verify functionality.
Hardware List:
- (1) CURT brake control harness
- (2) Cable ties
Specifications:
- Compatible Vehicles:
- Ram 1500
- Ram 2500
- Ram 3500
Installation Instructions for Ram Vehicles
Part Numbers:
- 51457
Wiring Access Location:
- BH2 - Under dash, to the right of the steering column
Step-by-Step Instructions:
Step 1: Locate the vehicle brake control harness connector
- Find the grey, 4-pin vehicle brake control harness connector under the dash, to the right of the steering wheel.
- It will be taped to another harness and will resemble the brake control harness.
- Remove any foam padding from the connector if present.
Step 2: Connect the brake control harness to the vehicle connector
- Insert the brake control harness connector into the vehicle connector.
- Ensure the connector is fully inserted and the locking tabs are secure.
Step 3: Connect to the brake control unit
- Attach the brake control harness's black connector to the brake control's quick plug connector.
- Secure the harness using the provided cable ties, avoiding pinch points.
Step 4: Mount and test the brake control unit
- Mount the brake control unit as directed in its user manual.
- Perform the recommended test procedures to verify functionality.
Hardware List:
- (1) Brake control harness
- (2) Cable ties
Specifications:
- Compatible Vehicles:
- Vehicles with BH2 wiring location
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.
