How to Access +12V Power Circuit in 7-Way Wiring to Power Fuel Pump
Updated 06/05/2018 | Published 06/01/2018
Products Featured in This Question
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.
Featured Help Information
Miscellaneous Media
Continue Researching
- Video: All You Need to Know About the SnapRing TireSavers RV Tire Covers for 24" to 26" Tires
- Shop: Suspension Enhancement
- Shop: SnapRing TireSavers RV Tire Covers for 24" to 26" Tires - Single Axle - White - Qty 2
- Video: Breaking Down the Gas Pipe Sealant
- Video: Comprehensive Review: Gas Pipe Sealant
- Shop: Ring Terminal - 12-10 Gauge Wire - 3/8" Ring ID
- Shop: Trailer Wiring Junction Box
- Shop: Ring Terminal - 12-10 Gauge Wire - 5/16" Ring ID
- Shop: Power Wire Kit for Electric Trailer Brake Controllers - 12 Gauge
- Shop: MB Sturgis Propane Hose - 3/8" Male NPT x 1/2" Female Flare Swivel - 4'
- Shop: Gas Pipe Sealant
- Q&A: How to Use the 7 Way Plug to Power a Fuel Pump
- Q&A: Best Timbren Suspension Enhancement For 2023 Ford F-350 Super Duty
- Video: Detailed Breakdown of the Timbren Suspension Enhancement System-TFRTT350J
- Video: Setting up the Timbren Suspension Enhancement System on a 2021 Ford F-250 Super Duty
- Search Results: adjustable trailer coupler lock
- Search Results: adjustable trailer coupler
- Q&A: Wiring A 12v Water Pump To A 7-Way Connector
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Shop: Trailer Hitch
- Search Results: trailer hitch
- Article: Trailer Wiring Diagrams
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: Installation Time for Blue Ox BX1128 Flat Tow Base Plate Kit for 2016 Jeep Grand Cherokee
- Search Results: trailer wiring
- Shop: Trailer Wiring
- Article: How to Measure for Trailer Hitch Drop
- Q&A: Should I Get Loadlifter 5000 Or 7500 For Towing A 15K Fifth Wheel
- Search Results: trailer tires and wheels
- Q&A: How to Replace a Lance 6-Pin Plug w/ a Standard 7-Way Connector
on Trailer Wiring
