Trailer Plug Wiring For 2007 Freightliner M2 106 Cargo Truck

Updated 11/05/2013 | Published 11/01/2013

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Question:

i have a 2007 freightlinner m2 106 box truck. do you make a simple plug in trailer kit? 7 round or any type. under the truck near the back there is the usual plug connector that feeds the tail lights, i want to know if you make the adapter tha just plugs in like on light trucks? thanks

asked by: Woodie M

Expert Reply:

For your 2007 Freightliner M2 truck, there is not a plug-in trailer wiring harness available. I would recommend the Hopkins Active Taillight Converter, part # 46255. This system is designed to splice into the existing wiring on your truck and provide a 4-way connector at the rear of your truck. It also isolates and protects the tow vehicle from trailer electrical malfunctions.

I would recommend a circuit tester like part # PTW2993, to test the wiring on your truck. You want to test the wiring by function and not by color.

When installing the harness, these are the guidelines you will want to follow. Attach the white wire to the ground. Attach the brown wire to the parking/taillight, the yellow wire will attach to the left turn signal, the green will attach to the right turn signal, and the large red wire attaches to the battery. If you have a combined system, which means if the brake lights and turn signals run on the same wire, the thin red wire should be grounded with the white wire or terminated.

expert reply by: Jeffrey L