How to Wire up Lights in Your Hotrod!

Pretty much all of the other manufactures used 16 or 14 gauge wire on the headlamps... Chevy's choice was 18 gauge... Very small considering todays lighting requirements. Then add in the years of corrosion at connections, wear at the light and dimmer switches and the amount of resistance in the circuit goes way up.

How to Repair Headlight Wiring | It Still Runs

For most vehicles, the headlight circuit features four main components: the headlight bulb, the wiring harness (brings power to the headlight bulb) and the fuse (protects the circuit from power surge damage). If any of these components are damaged, the headlight circuit may not work.

How to Rewire a Headlight | It Still Runs

The wiring harness connects to the base of the headlight bulb as well as the power distribution center in the engine compartment. No extraneous parts need to be removed to rewire the headlight, although the exact process varies by make and model of vehicle.

Headlight Relay Wiring | GTSparkplugs

In many older cars, or cars where you have replaced the headlights with higher power bulbs you run the risk of over loading the wiring as the current draw for these higher power lights can exceed the what the original harness may have been designed for.

How to Repair a Dim Headlight | The Family Handyman

But most dim headlights are caused by a corroded ground wire. Just trace the wiring harness from the back of each headlight assembly and see where it connects to the vehicle body. Clean it as described in the photo. Another possibility is that as headlight filaments age, they deposit a gray/brown film on the inside of the bulb (See Photo).

Headlight Connector | O'Reilly Auto Parts

Order Headlight Connector for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35.00+. Check here for special coupons and promotions.