Ignitions and Electrical› Wiring Components

RetroBright

HOLLEY RETROBRIGHT ADAPTER - H4

$18.39

SKU: R07V H821

In Stock
In Stock
Ships by Jun 19
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The RetroBright headlight adapter is a plastic, black adapter designed to connect H4 headlights to non-standard H4 sockets. This kit includes housings and wiring pigtails, eliminating the need to cut factory wiring. It is specifically designed for vehicles with non-standard 3-prong headlight plugs.

Fitment

Fitment Guaranteed

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on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandRetroBright
Part NumberR07V H821

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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