Trailer Wiring Solution for Semi Truck to Connect to RV with 7-Way Blade Connector  

Question:

Expert Reply:

There isn't a plug-in style adapter for your application since the semi trucks have their brake lights separate from their turn signals. So what you'd want to do is install a 4-way first on the semi with the part # 119190KIT and then convert to a 7-way with the part # ETBC7 which would then allow you to also install a brake controller like the P2 part # 90885.

expert reply by: Jameson C

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