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4-Way Trailer Wiring Harness for 2021 Mercedes GLC300  


Just bought a 2021 Mercedes GLC300 4Matic. Which wiring harness do I need to order to go with my Curt hitch?


Helpful Expert Reply:

For your 2021 Mercedes Benz GLC300 the trailer wiring kit you'd want is the part # 118747 which is custom fit for an easy install and has a very reliable converter box.

expert reply by:
Jameson C

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