Product Details
- Brand: Curt
- Model: 14021 51515 56229 55774 45311 21500 40178 51160-CH1373
- Includes: Class 4 Trailer Tow Hitch, Replacement USCAR Socket with 24" Wires, Dual-Output 7 & 4-Way Connector Plugs into USCAR, Universal Trailer Brake Controller Harness with Pigtails, 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 2022-2024 Ford F150 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 Models w/ Factory Receiver w/ LED Tail back sensors & Install Notes
Installation Instructions for 2015-Present Ford F-150
Part Number:
- 14021
Tools Required:
- Ratchet
- Torque wrench
- Sockets: 10mm, 13mm, 15/16"
- Masking tape
- Safety glasses
Hardware List:
- 2 × U-shaped spacers, 3/16" x 1" x 2"
- 6 × Square-hole spacers, 3/8" x 1-1/4" x 2-1/2"
- 4 × 5/8"-11 x 1-3/4" grade 8 carriage bolts
- 4 × 5/8"-11 grade 8 serrated-flange nuts
- 4 × 5/8" fishwires
- 1 × M8-1.25 x 25mm CL10.9 flange bolt
Step-by-Step Instructions:
-
Prepare Vehicle:
- If present, use a 10mm socket to remove the grounding cable from the rear of the passenger-side frame rail.
- Lower the spare tire to provide additional workspace during the installation.
-
Access Frame Rails:
- If present, pull out the harness plug from the driver-side frame rail to prevent interference during installation.
-
Position U-Shaped Spacers:
- For the rearmost holes on both frame rails, tape a U-shaped spacer into the recess in the frame to ensure proper alignment during hitch installation.
-
Fishwire Carriage Bolts:
- Use the provided fishwires to guide two 5/8" carriage bolts and square-hole spacers through either an access hole or the end of each frame rail. Leave the hardware in the frame with the fishwires attached to facilitate hitch attachment.
-
Mount the Hitch:
- Raise the hitch into position, carefully pulling the fishwires to bring the carriage bolts into their final positions through the hitch mounting holes.
- Remove the fishwires carefully and loosely install the supplied 5/8" serrated-flange nuts onto the carriage bolts.
- If the grounding cable was removed in Step 1, reinstall it using the provided M8 flange bolt.
- If the harness plug was removed in Step 2, push it into the 1" hole on the hitch plate on the driver side.
-
Torque Fasteners:
- Torque all 5/8" fasteners to 180 lb-ft to ensure secure attachment.
- Raise the spare tire back into its original position.
Safety Notes:
- Load Capacities:
- Weight Carrying: 10,000 lbs. gross trailer weight (GTW), 1,000 lbs. tongue weight (TW).
- Weight Distribution: 12,000 lbs. GTW, 1,200 lbs. TW.
- Warning: Never exceed the vehicle manufacturer's recommended towing capacity.
- Maintenance:
- Periodically inspect the trailer hitch to ensure all mounting hardware remains tight and structural components are secure.
- Warranty:
- CURT Manufacturing LLC. warrants this product to be free of defects in material and workmanship at the time of retail purchase by the original purchaser. Alteration, misuse, or improper installation voids the warranty. Liability is limited to repair or replacement of defective products and excludes incidental or consequential damages.
For installation questions, contact Technical Support at 1-877-287-8634.
Installation Instructions for 2015-Present Ford F-150
Part Number:
- 14021
Tools Required:
- Ratchet
- Torque Wrench
- Sockets: 10mm, 13mm, 15/16"
- Masking Tape
- Safety Glasses
Hardware List:
- 2 × U-shaped spacers, 3/16" x 1" x 2"
- 6 × Square-hole spacers, 3/8" x 1-1/4" x 2-1/2"
- 4 × 5/8"-11 x 1-3/4" grade 8 carriage bolts
- 4 × 5/8"-11 grade 8 serrated-flange nuts
- 4 × 5/8" fishwires
- 1 × M8-1.25 x 25mm CL10.9 flange bolt
Step-by-Step Instructions:
-
Prepare Vehicle:
- If present, use a 10mm socket to remove the grounding cable from the rear of the passenger-side frame rail.
- Lower the spare tire to provide additional workspace during the installation.
-
Access Frame Rails:
- If present, pull out the harness plug from the driver-side frame rail to prevent interference during installation.
-
Position U-Shaped Spacers:
- For the rearmost holes on both frame rails, tape a U-shaped spacer into the recess in the frame to ensure proper alignment during hitch installation.
-
Fishwire Carriage Bolts:
- Use the provided fishwires to guide two 5/8" carriage bolts and square-hole spacers through either an access hole or the end of each frame rail.
- Leave the hardware in the frame with the fishwires attached to facilitate hitch attachment.
-
Mount the Hitch:
- Raise the hitch into position, carefully pulling the fishwires to bring the carriage bolts into their final positions through the hitch mounting holes.
- Remove the fishwires carefully and loosely install the supplied 5/8" serrated-flange nuts onto the carriage bolts.
- If the grounding cable was removed in Step 1, reinstall it using the provided M8 flange bolt.
- If the harness plug was removed in Step 2, push it into the 1" hole on the hitch plate on the driver side.
-
Torque Fasteners:
- Torque all 5/8" fasteners to 180 lb-ft to ensure secure attachment.
- Raise the spare tire back into its original position.
Safety Notes:
- Load Capacities:
- Weight Carrying: 10,000 lbs. gross trailer weight (GTW), 1,000 lbs. tongue weight (TW).
- Weight Distribution: 12,000 lbs. GTW, 1,200 lbs. TW.
- Warning: Never exceed the vehicle manufacturer's recommended towing capacity.
- Maintenance:
- Periodically inspect the trailer hitch to ensure all mounting hardware remains tight and structural components are secure.
Specifications:
- Installation Time:
- Professional: 30 minutes
- Novice (DIY): 60 minutes
- Drilling Required: No
Manufacturer Notes:
- Attention: This is a summary of the installation procedure. For complete installation instructions, including diagrams and detailed information, 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.
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 Brake Control Plugin Wiring Harness (Part 51515)
Tools Required:
- Wire Stripper & Cutter
- Pliers
Overview:
This brake control plugin wiring harness is designed for quick and secure connections to your brake controller. It simplifies installation by matching functions and connecting to the corresponding wires in your vehicle.
Step-by-Step Instructions:
-
Disconnect the Battery:
- Before beginning, disconnect the battery terminals to prevent electrical shorts or damage.
-
Connect the Wires:
- Refer to the following chart to match the harness wires to their functions:
- Black Wire: Battery Positive (+)
- Red Wire: Stoplight Signal (active when the brake pedal is pressed)
- White Wire: Ground (-)
- Blue Wire: Output to Trailer Brakes
- Use the appropriate connectors to secure each wire, ensuring a solid connection.
- Refer to the following chart to match the harness wires to their functions:
-
Secure the Wiring Harness:
- Mount the wiring harness under the dashboard or another safe location, keeping it away from moving parts or sharp edges.
-
Plug in the Brake Controller:
- Insert the wiring harness connector into the brake controller, ensuring it clicks securely into place.
-
Reconnect the Battery:
- Reattach the battery terminals, ensuring they are clean and tightly connected.
-
Test the System:
- Use a test light, circuit tester, or trailer to verify all functions:
- The brake controller powers on.
- The manual override activates the trailer brakes.
- Stoplight signals and trailer brakes function properly when the brake pedal is pressed.
- Use a test light, circuit tester, or trailer to verify all functions:
Notes:
- Always connect wires based on function, not color, to ensure proper operation.
- Consult your vehicle manual for fuse locations related to the brake control system.
- Verify all connections are secure and tested before use.
Warning:
- All connections must be complete for the system to function properly.
- Overloading circuits can cause damage or fire. Do not exceed the lower of the towing manufacturer’s ratings or:
- Max. Right Turn, Left Turn, Stop, & Tail Light Circuits: 7.5 amps
- Max. (+) Battery, Reverse, and Electric Brake Circuits: 30 amps
- Refer to your vehicle’s owner’s manual for additional instructions. Additional fusing may be required.
For safe towing and optimal performance, ensure all connections are properly secured and tested.
Installation Instructions for Brake Control Plugin Wiring Harness (Part 51515)
Tools Required:
- Wire Stripper & Cutter
- Pliers
Overview:
This brake control plugin wiring harness is designed for quick and secure connections to your brake controller. It simplifies installation by matching functions and connecting to the corresponding wires in your vehicle.
Step-by-Step Instructions:
-
Disconnect the Battery:
- Before beginning, disconnect the battery terminals to prevent electrical shorts or damage.
-
Connect the Wires:
- Refer to the following chart to match the harness wires to their functions:
- Black Wire: Battery Positive (+)
- Red Wire: Stoplight Signal (active when the brake pedal is pressed)
- White Wire: Ground (-)
- Blue Wire: Output to Trailer Brakes
- Use the appropriate connectors to secure each wire, ensuring a solid connection.
- Refer to the following chart to match the harness wires to their functions:
-
Secure the Wiring Harness:
- Mount the wiring harness under the dashboard or another safe location, keeping it away from moving parts or sharp edges.
-
Plug in the Brake Controller:
- Insert the wiring harness connector into the brake controller, ensuring it clicks securely into place.
-
Reconnect the Battery:
- Reattach the battery terminals, ensuring they are clean and tightly connected.
-
Test the System:
- Use a test light, circuit tester, or trailer to verify all functions:
- The brake controller powers on.
- The manual override activates the trailer brakes.
- Stoplight signals and trailer brakes function properly when the brake pedal is pressed.
- Use a test light, circuit tester, or trailer to verify all functions:
Notes:
- Always connect wires based on function, not color, to ensure proper operation.
- Consult your vehicle manual for fuse locations related to the brake control system.
- Verify all connections are secure and tested before use.
Warning:
- All connections must be complete for the system to function properly.
- Overloading circuits can cause damage or fire. Do not exceed the lower of the towing manufacturer’s ratings or:
- Max. Right Turn, Left Turn, Stop, & Tail Light Circuits: 7.5 amps
- Max. (+) Battery, Reverse, and Electric Brake Circuits: 30 amps
- Refer to your vehicle’s owner’s manual for additional instructions. Additional fusing may be required.
For safe towing and optimal performance, ensure all connections are properly secured and tested.
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.