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Old 07-23-2012, 09:59 PM   #1
VH Coachworks
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Join Date: Nov 2007
Location: Central Minnesota
Posts: 631
Lightbulb 2003-2007 Chevy Heavy Duty Headlight Relay Harness

2003 - 2007.5 (Classic Body Style) Chevy Heavy Duty Headlight Harness. What the harness does is this; The way all 03-07 GM trucks headlights are designed is to draw power for your headlights from the headlight switch in the dash using small 16 - 18 Gauge wire for power. Which results in a lot of lost voltage, and also the danger of melting wires or your headlight switch with upgraded headlights such as HID's.

Now what the HD Harness does is this: by using 3 relays (1 for the high beam, 1 for the low beams, and 1 for the 4-High feature) it draws power directly from the battery and uses 12 Gauge wire to power the headlights from the relay and gives your headlights 13.8 volts +. Which will result in having brighter, and safer headlights! The harness' are 100% "plug n' play", there is no cutting of the original factory wiring what-so-ever. Also, if you have HID's and have issues with "flickering" this will clear up that issue. These harness' also have 4-High relay built in, so the low beams stay on with the high beams, which also greatly increases your night time visibility!

These are not a low end cheap harness like the so called "Relay Harness'" that various Internet retailers sell. These are complete NEW high quality true Heavy Duty Headlight Harness's, that replaces your factory Headlight harness (but the factory headlight harness can remain on the vehicle). ALL of the connections are cleanly soldered and heat shrunk to provide the best connection possible. The HD Harness comes with complete directions.


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Regular Price: $99.95

Shipping: FREE SHIPPING via USPS Prioirity Mail to the lower 48 States ONLY
Shipping to Canada: $15.99 via USPS


Payment: PayPal or a US Postal Money Order

To Order: Simply send us a PM with your PayPal address and we'll send you an invoice with a total via PayPal

Part Number: 0307HD712






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