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30 ft. Wishbone 4-Way Trailer Wiring Harness with 30" Ground Wire

Our Price: $22.98
In Stock
30' Wishbone 4-Way Trailer Wiring Harness with 30" Ground Wire This is a 30' split wishbone 4-way trailer wiring harness with four conductors and a 30" ground wire.
  • Trailer Connectors
  • Trailer End Connector
  • 4 Flat
  • Optronics

40 Ft 5-Way Trailer Wiring Harness - Wishbone Style - 30" Ground - 5' Auxiliary Wire

Retail: $40.38
Our Price: $35.69
In Stock
5-Way trailer harness connects to your tow vehicle to control trailer light functions. Wishbone-style harness comes with 2 tail light wires split for simple wiring. ...
Features: 5-Way trailer harness connects to your tow vehicle to control trailer light functions Ideal for marine trailers with hydraulic or surge brakes Wishbone-style harness comes with 2 tail light wires split for simple wiring Allows you to run wires separately down each side of the trailer to tail lights without needing a jumper wire Auxiliary wire (blue) connects to backup light circuit to disengage surge brakes when you are driving in reverse Hydraulic actuator must have electric lockout feature built-in to disengage the trailer brakes Color coded wires help with installation White - ground Brown - tail lights Yellow - driver side stop/turn Green - passenger side stop/turn Blue - auxiliary wire Specs: Wire harness length: 40' Ground wire length: 30" Auxiliary wire length: 5' Manufacturer Cross Reference Harness will work as an exact replacement for: Truck Lite # 002295
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • 5 Flat
  • Splice-In
  • Optronics
  • No Converter
  • Universal Fit

25 ft. Wishbone 4-Way Trailer Wiring Harness with 42" Ground Wire

Our Price: $22.12
In Stock
25' Wishbone 4-Way Trailer Wiring Harness with 42" Ground Wire This is a 25' split wishbone 4-way trailer wiring harness with four conductors and a 42" ground wire.
  • Trailer Connectors
  • Trailer End Connector
  • 4 Flat
  • Optronics

4-Way Wishbone Trailer Wiring Harness with 42" Ground Wire - 40' Long

Our Price: $43.63
In Stock
This wiring harness provides a simple, efficient method for rewiring your trailer with a 4-pole flat trailer-end connector. The wishbone-style harness has an extra tail light wire that makes it easier to wire your trailer.It's the most efficient way to wire your trailer.
  • Trailer Connectors
  • Trailer End Connector
  • 4 Flat
  • Optronics

25 Ft 5-Way Trailer Wiring Harness - Wishbone Style - 30" Ground - 5' Auxiliary Wire

Retail: $41.17
Our Price: $23.13
In Stock
5-Way trailer harness connects to your tow vehicle to control trailer light functions. Wishbone-style harness comes with 2 tail light wires split for simple wiring. ...
Features: 5-Way trailer harness connects to your tow vehicle to control trailer light functions Ideal for marine trailers with hydraulic or surge brakes Wishbone-style harness comes with 2 tail light wires split for simple wiring Allows you to run wires separately down each side of the trailer to tail lights without needing a jumper wire Auxiliary wire (blue) connects to backup light circuit to disengage surge brakes when you are driving in reverse Hydraulic actuator must have electric lockout feature built-in to disengage the trailer brakes Color coded wires help with installation White - ground Brown - tail lights Yellow - driver side stop/turn Green - passenger side stop/turn Blue - auxiliary wire Specs: Wire harness length: 25' Wire gauge (all): 20 Ground wire length: 30" Auxiliary wire length: 5' Manufacturer Cross Reference Harness will work as an exact replacement for: Truck Lite # 002275
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • 5 Flat
  • Splice-In
  • Optronics
  • No Converter
  • Universal Fit

Curt Jacketed 7-Wire Trailer Wiring - 250'

Retail: $1,028.95
Our Price: $637.51
In Stock
250' spool of 7-way trailer cable with three 12-gauge wires and four 14-gauge wires. Features color-coded conductors, abrasion-resistant jacket, flexible stranded core, and meets SAE J-1128 standards for durable, high-capacity trailer wiring.Highlights Shop-Sized Supply: 250-foot spool ideal for frequent 7-way trailer wiring installs. Heavy-Duty Capacity: Three 12-gauge wires (white, black, blue) plus four 14-gauge wires (red, green, brown, yellow) handle full trailer function.
  • Wire
  • Jacketed Wire
  • CURT
  • 12 Gauge
  • 7 Wire

35 ft. Wishbone 4-Way Trailer Wiring Harness with 30" Ground Wire

Our Price: $22.51
In Stock
35' Wishbone 4-Way Trailer Wiring Harness with 30" Ground Wire This is a 35' split wishbone 4-way trailer wiring harness with four conductors and a 30" ground wire.
  • Trailer Connectors
  • Trailer End Connector
  • 4 Flat
  • Optronics

Curt Jacketed 7-Wire Trailer Wiring - 100'

Retail: $582.95
Our Price: $376.10
In Stock
100' spool of 7-way trailer cable with six 12-gauge wires and one 10-gauge wire. Features color-coded conductors, abrasion-resistant jacket, flexible stranded core, and meets SAE J-1128 standards for durable, high-capacity trailer wiring.Highlights Shop-Sized Supply: 100-foot spool ideal for frequent 7-way trailer wiring installs. Heavy-Duty Capacity: Six 12-gauge wires plus one 10-gauge white wire handle full trailer function. Color-Coded Conductors: Industry-standard colors simplify trailer circuit assignments.
  • Wire
  • Jacketed Wire
  • CURT
  • 12 Gauge
  • 7 Wire

Curt Vehicle Wiring Harness with 5-Pole Flat Trailer Connector - 60" Wire Lead

Retail: $36.20
Our Price: $14.13
In Stock
Wire your vehicle to tow a trailer with surge brakes by installing this universal, splice-in kit. Includes 5-way flat connector, 60" of bonded wire and installation hardware. ...
Features: 5-Way flat trailer connector at the back of your vehicle powers your trailer's signal lights Fifth pin provides connection to reverse lights to allow proper functioning of hydraulic brake actuator Compatible with 4-way flat connectors Rubber-molded connector and bonded wire offer maximum durability Simple installation - hardwires to existing wiring Specs: Application: vehicles with 2-wire lighting systems Lead length: 60" Wire configuration: Blue: reverse lights Yellow: left turn and brake lights Green: right turn and brake lights Brown: tail lights White: ground Limited 1-year warranty
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • 5 Flat
  • Splice-In
  • CURT
  • No Converter
  • No Tow Package

TowSmart Trailer Connector Adapter w/ LED Illuminator - 7-Wire to 4-Wire Flat

Our Price: $16.83
You're lining up the trailer in the driveway when you realize the plug doesn't match. No time to rewire. You grab the adapter, snap it into place, and the lights fire up. ...
Compact Housing: Fits snugly without dangling wires. Weather-Resistant Housing: Helps protect against moisture and road grime. Features to know about Quick Connection with Visual Confirmation This adapter converts your vehicle's 7-way blade socket to a 4-way flat plug, allowing you to tow trailers with different wiring configurations.
  • Wiring Adapters
  • 7 Blade to 4 Flat
  • TowSmart
  • Universal Fit

Mini LED Side Marker Boat Trailer Light - 2 Wire - Amber LED - Clear Lens - 18" Wire

Retail: $8.18
Our Price: $7.10
In Stock
PC rated. 1" Diameter, waterproof mini LED amber light functions as a side marker and clearance light when properly mounted. Recessed-mount installation with included grommet. 2-Wire design. 18" Long pigtail.Features: Small, round LED light serves as a side marker and clearance light for your trailer Sealed, waterproof housing and lens unit Military-grade construction of circuit board Urethane potting offers better protection than common epoxy potting Premium LED is energy efficient, long-lasting, and vibration resistant Rated for up to 100,000 hours of operation Durable UV-resistant lens Clear lens over amber LED Compatible with 12V DC system Recessed-mount installation with included grommet Requires a 3/4" diameter cutout Add on stainless steel trim ring (sold separately) for a finished look 2-Wire harness hardwires to your application Includes white ground wire Meets or exceeds FMVSS 108 standards PC-rated light produces a 180-degree beam Assembled in the USA Specs: Dimensions: 1" diameter x 7/8" thick Diodes: 1 Input voltage: 9V - 14V Power draw: 0.03 - 0.06 amps Wire length: 18" IP rated: 68 Limited lifetime warranty Sealed, Waterproof Trailer Light The waterproof construction of this light makes it ideal for use on trailers that may be submerged, like a boat trailer.
  • Clearance Lights
  • Marker
  • Submersible Lights
  • 1 Inch Diameter
  • TecNiq
  • Round
  • Amber
  • Recessed Mount

Optronics Trailer Light Kit for Trailers over 80" Wide - Submersible - 25' Wiring Harness

Retail: $70.62
Our Price: $57.44
In Stock
This incandescent trailer light kit comes with everything needed to properly light your trailer. 2 Tail lights, 2 amber clearance lights, 2 amber reflectors, license plate bracket, 25' wiring harness with 4-pole connector, and mounting hardware.For proper mounting, the lights must be installed at the widest points on the rear of the trailer - one on each corner. Surface-Mount Light Surface-mount trailer lights install using a flange or bracket with mounting holes. These lights lay flat against the trailer surface and only require a small, often pre-existing hole, for wiring.
  • Tail Lights
  • Brake/Tail/Turn
  • License Plate
  • Marker
  • Submersible Lights
  • 8L x 3W Inch
  • Optronics
  • Rectangle
  • Amber
  • Red
  • Surface Mount

Pollak Single-Pole, Round Pin Trailer Wiring Connector - Trailer End

Retail: $86.13
Our Price: $49.07
In Stock
This single-pole, round pin plug provides auxiliary power from your vehicle battery to utility vehicles, winches, agricultural equipment and other applications. Rugged connector has a continuous-duty capacity of 300 amps.Features: Rugged, single-pole connector Ideal for heavy-duty power applications Supplies auxiliary power from vehicle battery Round, solid brass terminal pin Minimum voltage drop is ensured Dielectric (non-conducting) grease coating Prevents corrosion and resistance Solid brass terminal screws Wire gauge #00 is accepted Corrosion-resistant plating Cable lock with plated steel retainer screw Tapered design with jumbo, finger-pull grips Easy hand-position pull 2 Hang-up holes High-impact, ABS thermoplastic interior Replaceable - minimizes maintenance costs Interchangeable with competitive makes Specs: Applications: Agricultural equipment, utility vehicles, winches, light-aircraft-grade equipment Current rating: 300 amps continuous-duty capacity 1-Year limited warranty 11-852 Pollak Single-Way, Round Pin Trailer Wiring Connector - Trailer End
  • Trailer Connectors
  • Trailer End Connector
  • 1 Round
  • Pollak

Pollak 5-Pole, Round Pin Trailer Wiring Connector - Chrome - Trailer End

Retail: $32.24
Our Price: $15.88
In Stock
Establish a secure connection between your trailer and tow vehicle with this chrome-plated, 5-pole plug. Split brass pins ensure minimum voltage drop, and pull grips enable easy insertion and removal.Features: Standard, 5-pole plug connects trailer to socket on tow vehicle Round, split brass contacts Minimum voltage drop and maximum current capacity are ensured Dielectric (non-conducting) grease coating Prevents corrosion and resistance Solid brass terminal screws Chrome-plated, die-cast zinc housing for durability Finger grips make insertion and removal easy ABS thermoplastic interior High-impact, green insulators Specs: Volt rating: 12 volts - 24 volts Current rating: 15 amps Wiring configuration: Color - circuit: White - Ground Return Green - Right Turn and Brake Lights Yellow - Left Turn and Brake Lights Red - Auxiliary Circuit Brown - Tail Lights 1-Year limited warranty
  • Trailer Connectors
  • Trailer End Connector
  • 5 Round
  • Pollak

Pollak Heavy-Duty, 7-Pole, Round Pin, Trailer Wiring Connector - Trailer End

Retail: $30.40
Our Price: $20.33
In Stock
Establish a secure connection between your trailer and semi or other tow vehicle with this heavy-duty, 7-pole plug. Plug has round brass pins to ensure minimum voltage drop and pull grips for easy insertion and removal.Features: Heavy-duty, 7-pole plug connects trailer to socket on tow vehicle Round, floating, solid brass pins Minimum voltage drop is ensured Coated with dielectric (non-conducting) grease Prevents corrosion and resistance Easy alignment and maximum contact Solid brass terminal screws Zinc, die-cast housing for durability Tapered design with jumbo, finger-pull grips Easy hand-position pull 2 Hang-up holes Cable lock with plated steel retainer screw High-impact, ABS thermoplastic interior Includes extended lip for easy removal and replacement Accepts wide range of wire gauges - from #16 wires to #8 ground wire Highest quality - meets and exceeds all standards of SAE J560 Interchangeable with all competitive ATA (American Trucking Associations) types Specs: Volt rating: 6 volts - 28 volts Current rating: 40 continuous-duty amps Wiring configuration: Color - circuit - recommended wire gauge: White - Ground Return - 8 gauge Black - Clearance, Side Marker, Identification - 12 gauge Yellow - Left Turn and Hazard Signal - 12 gauge Red - Stop Lamps and Anti-Lock Devices - 10 gauge Green - Right Turn and Hazard Signal - 12 gauge Brown - Tail, Rear Clearance, Marker and License-Plate Lamps - 12 gauge Blue - Auxiliary Circuit/ABS - 10 gauge 1-Year limited warranty 11-700 Pollak Heavy-Duty, 7-Way, Round Pin, Trailer Wiring Connector - Trailer End Replaces 52024 Note: Does not fit Pollak Cable Guard (PK11763).
  • Trailer Connectors
  • Trailer End Connector
  • 7 Round
  • Pollak

TowSmart Trailer Connector - 4-Wire Flat Set - 12" Trailer - 48" Vehicle

Our Price: $12.41
In Stock
You're halfway through loading the trailer when your buddy shouts the lights aren't working. You check the plug. Wrong connector. No time to troubleshoot. You grab the harness, plug it in, and just like that, everything lights up.Highlights 4-Way Flat Connector Set: Links vehicle and trailer lighting systems with ease. Pre-Wired Leads: 12" trailer end and 48" vehicle end for flexible routing. Color-Coded Wires: Simplifies installation with standard wiring colors.
  • Trailer Connectors
  • Trailer and Vehicle End Connector
  • 4 Flat
  • TowSmart

TowSmart ProClass 7-Blade Trailer Connector w/ Wire Tester - Trailer End

Retail: $36.99
Our Price: $30.92
In Stock
You're wiring up a trailer and need to know it's done right. This 7-way plug lights up to show which signals are live the second you connect. ...
Highlights 7-Blade Connector: Standard trailer-end plug for lights, brakes, and power. Built-In LED Tester: Confirms active signals during hookup. Screw Terminals: Accepts blunt-cut wires for easy install.
  • Trailer Connectors
  • Trailer End Connector
  • 7 Blade
  • TowSmart

TowSmart Trailer Connector - 5-Wire Flat Set - 12" Trailer - 48" Vehicle

Retail: $21.99
Our Price: $20.38
In Stock
You're replacing the wiring on a trailer with surge brakes and want everything to work right the first time. This 5-wire flat set gives you the reverse lockout and all the lighting functions. ...
Highlights 5-Wire Flat Connector Set: Includes both trailer and vehicle ends. 12" Trailer Lead: Short length for easy connection at the trailer end. 48" Vehicle Harness: Provides ample length for vehicle-side wiring.
  • Trailer Connectors
  • Trailer and Vehicle End Connector
  • 5 Flat
  • TowSmart

TowSmart 4-Way Flat Trailer Wiring Kit - Vehicle and Trailer Ends

Retail: $9.99
Our Price: $8.23
In Stock
You're wiring up your trailer and need a clean, reliable connection. This matched 12 inch set links vehicle and trailer wiring so your lights stay bright and your setup stays simple.Corrosion Resistant: Protects connections from weather exposure. Easy Installation: Simple wiring for a clean setup.
  • Trailer Connectors
  • Trailer and Vehicle End Connector
  • 4 Flat
  • TowSmart

Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Connector - Metal - Trailer End

Retail: $25.31
Our Price: $10.25
In Stock
Establish a secure connection between your trailer and tow vehicle with this metal, 4-pole plug. Round brass pins ensure minimum voltage drop, and pull grips enable easy insertion and removal.Features: Heavy-duty, metal, 4-pole plug connects trailer to socket on tow vehicle Fits Pollak heavy-duty, 4-pole round pin wiring socket (PK11404) Does not fit Pollak heavy-duty, 4-pole, round pin socket, concealed terminals (PK11410) Round, solid brass terminal pins Minimum voltage drop is ensured Dielectric (non-conducting) grease Prevents corrosion and resistance Solid brass terminal screws Zinc, die-cast housing for durability Finger grips make insertion and removal easy Cable lock with plated steel retainer screw Prevents chafing Provides more support for cables Saves installation time High-impact, ABS thermoplastic interior Includes extended lip for easy removal and replacement Accepts up to #12 gauge wires Interchangeable with competitive brands Specs: Volt rating: 12 volts - 24 volts Current rating: 35 amps Wiring configuration: Color - circuit: White - Ground Return Green - Right Turn and Brake Lights Yellow/Red - Left Turn and Brake Lights Brown - Tail Lights 1-Year limited warranty
  • Trailer Connectors
  • Trailer End Connector
  • 4 Round
  • Pollak

Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Connector - Chrome - Trailer End

Retail: $11.17
Our Price: $9.15
In Stock
Establish a secure connection between your trailer and tow vehicle with this chrome-plated, 4-pole plug. Split brass pins ensure minimum voltage drop, and pull grips enable easy insertion and removal.Features: Heavy-duty, 4-pole plug connects trailer to socket on tow vehicle Round, split brass contacts Minimum voltage drop and maximum current capacity are ensured Dielectric (non-conducting) grease coating Prevents corrosion and resistance Solid brass terminal screws Chrome-plated, die-cast zinc housing for durability Finger grips make insertion and removal easy ABS thermoplastic interior High-impact, green insulators Specs: Fits Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Socket (PK11410) Does not fit Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Socket (PK11404) Plug diameter: 13/16" Volt rating: 12 volts - 24 volts Current rating: 20 amps Wiring configuration: Color - circuit: White - Ground Return Green - Right Turn and Brake Lights Yellow/Red - Left Turn and Brake Lights Brown - Tail Lights Maximum size wire gauge: 12 1-Year limited warranty
  • Trailer Connectors
  • Trailer End Connector
  • 4 Round
  • Pollak

Pollak 6-Pole, Round Pin, Trailer Wiring Connector - Trailer End

Retail: $25.85
Our Price: $7.11
In Stock
Establish a secure connection between your trailer and tow vehicle with this 6-pole plug. Round brass pins ensure minimum voltage drop, and pull grips enable easy insertion and removal.Features: Standard, 6-pole plug connects trailer to socket on tow vehicle Round, floating, solid brass terminal pins Minimum voltage drop is ensured Coated with dielectric (non-conducting) grease Prevents corrosion and resistance Easy alignment and maximum contact Solid steel terminal screws Die-cast housing for durability Tapered design with jumbo, finger-pull grips Easy hand-position pull Cable lock with plated steel retainer screw High-impact, ABS thermoplastic interior Includes extended lip for easy removal and replacement Accepts up to #12 gauge wires Has key and keyway to eliminate twisting and breakage Replaceable - minimizes maintenance costs Specs: Volt rating: 6 volts - 28 volts Current rating: 40 continuous-duty amps Wiring configuration: Color - circuit: White - Ground Return Brown - Tail Lights Yellow - Left Turn Red - Stop and/or Electric Brakes Green - Right Turn Blue - Auxiliary Circuit 1-Year limited warranty
  • Trailer Connectors
  • Trailer End Connector
  • 6 Round
  • Pollak

2-Pole Trailer Wiring Connector - Trailer Side

Retail: $43.43
Our Price: $31.97
In Stock
Features: Pollak 2-Pole Trailer Connector Trailer Side Will accommodate 4 or 6 gauge wires Soldering required for installation Remove each terminal from plastic housing and solder each of the connectors individually Specs: Voltage rating: 12 volts Current rating: 200 amp 12800EP Pollak 2 Pole Trailer Connector
  • Trailer Connectors
  • Trailer End Connector
  • 2 Pole
  • Pollak

TowSmart 4-Way Flat Trailer Connector w/ Wire Tester - Trailer End - 24"

Retail: $10.99
Our Price: $10.01
In Stock
The trailer lights are flickering again. You've replaced bulbs, checked grounds, and still no luck. Time to swap the plug. This 4-way flat connector comes with a built-in tester and 24 inches of bonded wire. ...
Highlights 4-Way Flat Plug: Standard trailer-end connector. 24" Bonded Wire Lead: 18-gauge wire for stop, turn, and taillights. Built-In Wire Tester: Lets you verify light function during install.
  • Trailer Connectors
  • Trailer End Connector
  • 4 Flat
  • TowSmart