9004 & 9007 Headlight Relay Kits

(4 customer reviews)


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Either kit includes the following:

  • (1) Pre-assembled Harness, loomed in Semi-Rigid Split Braid tubing, and terminated with OEM style connectors
  • (2) 40 Amp Hella Waterproof Relays
  • (1) Waterproof ATC Style Fuse Holder & 30 Amp ATC fuse
  • All hardware required to install it

You absolutely, positively will not have to run to the hardware store to install this kit. How do we know? Simple – because we’ve actually installed them ourselves.


Headlight Relay Kit Extensions

In some vehicles, the battery is in a location at which the harness will not reach both it and the headlights. In these cases, a Headlight Relay Kit Extension is required. These extensions are designed to plug directly into the harness of either the HRK1 or HRK2 to extend the main power lead. No special tools are required to install them.

Each kit includes a pre-assembled extension covered in split braided tubing as well as cable ties for an absolutely neat installation.

4 reviews for 9004 & 9007 Headlight Relay Kits

  1. Travis Clem (verified owner)

    Made My Weak Leds A Tad Brighter (Not Recommended If You Have Cheap Bulbs, Get Something with a ton of watts for best results, pain in the ass to install but thats my cars fault not the harness, only cons i can see about this the ground wire ends are small, if they was bigger you could use existing grounds without drilling holes, another cons is the harness is not really flexable so its hard for cable management but overall really happy with it, now i need brighter bulbs

  2. Andrew (verified owner)

    Installed 9007 Kit on my 1992 F150. Easy installation and lights are much brighter now. I like knowing that my headlight switch has zero risk of catching fire now – this fixed a factory defect AND upgraded the headlights.

  3. franklin.amail (verified owner)

    This is the solution i’ve been searching for! Very high quality hand made harnesses to handle plenty of power. The 9007 kit fit great on my 1996 Ford Bronco. I can’t wait to see the new light output at night. Wire lengths were perfect and the connectors fit great! I did have to use a drill and open up the ring terminals a bit to get them to fit on the factory ground lugs on the passenger fender and driver core support. A++++++++++

  4. Greg (verified owner)

    Very pleased with the quality of the kit. I was able to make it fit great on my 92 f150.

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