Wire your trailer with this universal, splice-in wiring harness so that you can connect the trailer's wiring to your vehicle's during towing. Wishbone design removes need for a jumper wire between tail lights.

This wishbone-style, 5-wire flat harness is great for a trailer with a surge coupler. The 40' long harness includes a 4' long ground wire and a blue auxiliary wire that signals your trailer brakes to disengage while you are in reverse.

This 18" long adapter plugs in to your 7-way, RV-style, vehicle-end connector to convert it for use with a 4-way or 5-way flat connector on your towed vehicle or trailer.

This adapter with coiled cord stretches 8' so you can connect your 7-way, RV-style, vehicle-end connector to a 4-way or 5-way flat connector on your towed vehicle or trailer.

Wishbone-style harness features a 4-pole flat trailer-end connector. Ground wire is 3' long.

This 4-wire flat, trailer-end connector includes a 4' long, jacketed cable with stripped, color-coded wires for easy installation.

This 4-wire flat, trailer-end connector includes a 10' long, jacketed cable with stripped, color-coded wires for easy installation.

This 4-wire flat, trailer-end connector includes an 8' long, jacketed cable with stripped, color-coded, 14-gauge wires for easy installation.

This 4-wire flat, trailer-end connector includes an 14' long, jacketed cable with stripped, color-coded, 14-gauge wires for easy installation.

The 5 way flat trailer connector is most commonly found on boat trailers that have hydraulic brakes. The fifth wire is hooked up to the reverse light circuit on the vehicle which then sends a signal to the hydraulic coupler to disengage the trailer brak es.

Adapter harness lets you span an additional 35' between your 7-way blade connector on your tractor to the 4-way flat connector on your agricultural towable implement. Continuous ground ensures reliable operation.

Adapter harness lets you span an additional 30' between your 7-way blade connector on your tractor to the 4-way flat connector on your agricultural towable implement. Continuous ground ensures reliable operation.