How to Access +12V Power Circuit in 7-Way Wiring to Power Fuel Pump
Question:
Do they make a adapter to activate the power supply so i can plug in my pump on my diesel fuel tank
asked by: Jeff H
Expert Reply:
7-way trailer wiring includes a +12V auxiliary power circuit that can be used for a range of purposes from powering an electric jack to topping off a trailer-mounted battery. This circuit is handled by the contact at the 1:00 position as you look at the vehicle's trailer socket. The ground is at the opposite pin, the one at the 7:00 position. Please refer to the linked photo.
For an easy way to access this power circuit to operate your fuel pump you could wire in a 7-way plug like # H20046 with butt connectors # DW05745-10 or even one with an included wiring junction box # e99011 to your pump. You would need to connect the two leads from the pump motor to the appropriate terminals inside the junction box using ring terminals # DW05705-1 and simply plug it in when you need it.
Products Referenced in This Question
Ring Terminal - 12-10 Gauge Wire - 3/8" Ring ID
- Wiring
- Wire Connectors
- Ring Terminals
- 3/8 Inch Diameter
- 12-10 Gauge
- Deka
more information >
Deka Heat Shrink Butt Connector - 12-10 Gauge - Nylon Insulation - Yellow - Qty 10
- Wiring
- Wire Connectors
- Butt Connectors
- 12-10 Gauge
- Deka
more information >
Hopkins 7-Way RV Style Connector with Molded Cable - Trailer End - 8' Long - RV Standard
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- 6 - 10 Feet Long
- Plug and Lead
- 7 Round - Blade
- Hopkins
more information >
Product Page this Question was Asked From
7-Way Molded Trailer Wire Connector, 6' Long
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- 6 - 10 Feet Long
- Plug and Lead
- 7 Round - Blade
- Hopkins
more information >
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