Upgrade your headlight's wiring harness for maximum light output with a Heavy-Duty head- light harness.
If you are adding brighter bulbs or upgrading to high power halogen lights. then you need to improve your wiring to take full advantage of the extra light output.
This Heavy-Duty Harness is complete with separate relays for low and high beams and features OE-style headlight sockets for easy installation with no splicing or cutting required.
This is recommended for use with our headlight part numbers 34804, 34805, 34806, and 34807.
1987,1988, 1989, 1990, 1991 Ford Bronco
1987, 1988, 1989, 1990, 1991 Ford Truck F150, F250, F350
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