We called RedArc tech support, and it patiently walked us through the process of testing the controller and checking the wiring on the Sprinter’s trailer socket with a test light.

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Learn how to install a 4-pin trailer wiring connector with this step by step guide and diagram.

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Wire harnesses are a critical component of cars: their production is highly individualised and can therefore only be done manually. If there are problems with delivery, as was recently the case due to ...

After an interruption due to the war, Leoni has restarted its Ukrainian cable harness production. Because these parts are manufactured individually for each vehicle and a quick relocation of ...

Find the perfect 4-pin trailer connector or wiring harness to help you haul your loads wherever you need to go.