Holley RetroBright Headlight Adapter H821

Holley RetroBright Adapter - H4 Non-Standard Plug - Pin-Out Swap

If you don't feel comfortable cutting up your factory wiring or don't 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.

• Headlight Adapter
• Allows Holley RetroBright Headlights to connect to any non-standard H4 Sockets or those that require a pin swap
• Eliminates the need to cut factory wiring
• Can be used to replace old and brittle factory sockets
• Entry level plastic version
• Housings / Wiring Pigtails included
• Plastic, Black
• H4 to Non Standard H4