4 Pin Trailer Wiring Harness Harbor Freight. Free shipping on orders over 25 shipped by amazon. 4 6 out of 5 stars 167.
Fits four way flat plugs. Includes male and female 4 flat connectors. Plug this easy to use trailer light tester into the 4 flat connector of your tow vehicle and the leds light up to confirm the wiring connections.
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Replacement 4 pole trailer wiring connectors and harnesses for harbor freight trailer. Wiring kit for four way trailer lights. The wiring harness doesnt last more than a year without a required replacement. Powers tail light stop light turn signals and all running lights.
