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Home Wiring Harnesses and Switches Holley RetroBright Holley Retrobright Adapter H821
Special Order
Holley RetroBright Holley Retrobright Adapter H821
Holley RetroBright Holley Retrobright Adapter H821
Holley RetroBright Holley Retrobright Adapter H821
Holley RetroBright Holley Retrobright Adapter H821
Holley RetroBright Holley Retrobright Adapter H821
  1. Holley RetroBright Holley Retrobright Adapter H821
  2. Holley RetroBright Holley Retrobright Adapter H821
  3. Holley RetroBright Holley Retrobright Adapter H821
  4. Holley RetroBright Holley Retrobright Adapter H821
  5. Holley RetroBright Holley Retrobright Adapter H821

Holley RetroBright Holley Retrobright Adapter H821

HOLH821
OUT OF STOCK, Please contact us for availability BEFORE ordering. This is a SPECIAL ORDER part. This item can be brought in either with a stock order or on it’s own. Contact us today to discuss available options.

$7.05

Holley RetroBright Holley Retrobright Adapter

H821

Holley Retrobright Adapter H4 Non-Porcelain Version Non-Standard Plug Pin-Out Swap 2 Pc.

If you dont feel comfortable cutting up your factory wiring or dont want to attempt to swap pins on your headlight plugs, Holley RetroBright adapters make it a plug-and-play affair. If the standard H4 male plug used on Holley RetroBright Headlights will not fit your female socket or you need to swap pins around to match up properly, these harnesses will make the job quick and easy.

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Get it Installed

JB's Power Centre offers on-site professional installation services in Calgary and Edmonton, AB.
We have on staff licensed Mechanical Technicians as well as MECP Certified 12-Volt Technicians.

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All products include a manufacturer warranty, but you can extend this warranty with
JB's Purchase Protection Plan
*Available on select products.