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What Amperage Rating Breakers are Used for 7-Way Trailer Wiring  

Question:

Hi there I’ve bought a truck but the trailer it was towing has shorted out and the brake lights where stuck on I have traced it back to these circuit breakers I have no idea what amperage they are. Any idea? Or have an idea of what to replace them with It’s a 2009 Toyota Tacoma

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Expert Reply:

If the breakers are for the 12 volt power circuit of the 7-way wiring then they would most likely be 40 amp like the part # 9510 but if they are for the brake controller output circuit they are most likely 30 amp like the # 38630.

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Jameson C
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