Amazon: jeep trailer wiring harness - Mopar Amazon: jeep trailer wiring harness - Mopar. Dodge Durango Trailer Tow Hitch Wiring Harness Kit Mopar OEM 82213986AB. $125 $ 125. 73. FREE Shipping. Only 4 left in stock - order soon. More Buying Choices $118 (5 new offers) Jeep Wrangler Trailer Hitch. Jeep Hitch Wiring | Harnesses, Adapters, Connectors Tow Wiring Harness by Smittybilt®. This wiring harness will make connecting the trailer wiring to your vehicle a plug n' play operation. It's specifically designed for the application and features OEM quality connectors and a rugged..