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Holley RetroBright Adapters H820 Wiring Harnesses, Adapter, H4, Non-Standard Plug, Pin-Out Swap, Plug-and Play, Ceramic, Premium Version,Pair

SKU: HLYH820

Wiring Harnesses

Holley RetroBright Adapters H820 Wiring Harnesses, Adapter, H4, Non-Standard Plug, Pin-Out Swap, Plug-and Play, Ceramic, Premium Version,Pair

SKU: HLYH820

Wiring Harnesses
A$41.85
IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

IMPORTANT NOTICE: Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.Reference Information Reference Data (Provide these details to our support team) Brand Name/s Holley, Hilborn, Holley Efi, Retrobright, Terminator X StreetFX SKU hlyH820 SFX Item ID 4784058 Accounting SKU hly-H820 Manufacturer SKU H820 Manufacturer UPC 840203396988 Alternative References H820, HLY-H820, RTBH820


Data: v2 - Desc: v4.2 - Upd: 2026-10-14 02:29:29

Part Type

H4 Pin Out Adapter

Data: v4.2 - Upd: 2026-09-29 03:27:49

Specifications

Wiring Harnesses, RetroBright Adapter, H4, Non-Standard Plug, Pin-Out Swap, Plug-and Play, Ceramic, Premium Version,Pair

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.

Additional details:
• 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
• Includes two Holley RetroBright H4 adapters

Product Attributes
BrandHolley
Manufacturer's Part NumberH820
Part TypeWiring Harnesses
Product LineHolley RetroBright Adapters
UPC840203396988
Fuse Block IncludedNo
QuantitySold as a pair.
NotesFor use on vehicles with non-standard 3-prong headlight plugs or that require a pin out swap.

Reference Information

Brand Name/s Holley
StreetFX SKU hlyH820
SFX Item ID 4784058
Supplier Item Code 4784058
Manufacturer SKU H820
Manufacturer UPC 840203396988
Alternative References RTBH820, H4

Compatibility

No specific fitment data available for this part. For clarification, please contact us.

Detailed Compatibility


Application Data
UniversalYes
Wiring Harness ClassificationHeadlight

This may not be an exhaustive list of compatible vehicles. Please reach out to one of our representatives if you are unsure or do not see your vehicle here.

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