Jeep Wrangler JK 7-Pin TRAILER WIRING OEM Mopar! - wwwon››Hitch Accessories›Wiring2002-2009 dodge ram trailer towing tow wiring harness 7 way mopar factory oem new Jeep Grand Cherokee WJ - Trailer towing Additional towing information and cautions . See also: Jeep detailed towing info (12-page PDF file) Never overload your vehicle beyond these design capacities. DaimlerChrysler cannot be responsible for brake performance if the Jeep vehicle and hydraulic brake systems are in any way connected. Vehicle Trailer Wiring Harnesses, T Connectors Hopkins trailer wiring solutions - Vehicle trailer wiring harness kits provide a 4 Wire Flat connector for your trailer and all of the necessary mounting accessories. Trailer Hitch Wiring & Electrical | Harnesses, Adapters wwwd››Exterior Accessories›Trailer HitchesNo matter what you drive or the type of trailer you tow, we have the plug-and-play harnesses, adapters, converters, and connectors to get them electrically connected. Upgraded Heavy Duty ModuLite Circuit Protected Vehicle Video Transcript for Tow Ready Wiring 119190 Review. Today we're going to review part number 119190. This is the Tow Ready upgraded heavy duty ModuLite circuit protected vehicle wiring harness with the 4-way flat trailer connector.Price: $48Availability: In stock Adapter 4-Pole to 5-Pole Trailer Wiring Adapter - Shorter Hopkins Wiring - 47515. Trailer wiring adapter that changes the 4-pole flat on your vehicle into a 5-pole flat. The blue wire gets spliced into the reverse light wire on the vehicle which is easily done with the included quick splice wire connector.Price: $8Availability: In stock Jeep Grand Cherokee WK - Towing The Trailer Tow Package includes a 4 and 7 pin wiring harness located at the rear underbody of the vehicle. Connect trailer lighting and brakes using factory harnesses only.