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Holley Throttle Body Rebuild Kits 503-3

Renew Kit, all Pro-Jection 2-Barrel and 2x2 Pro-Jection

Estimated Ship Date: Today Would you rather pick it up? Select Location

Brand: Holley

Manufacturer's Part Number: 503-3

Part Type: Throttle Body Rebuild Kits

Product Line: Holley Throttle Body Rebuild Kits

Summit Racing Part Number: HLY-503-3

UPC: 090127104651

Quantity: Sold as a kit.

Notes: Renew kit for Holley 2 barrel Pro-Jection and 2x2 Pro-Jection TBI units.

In-Store Pickup: Choose In-store pick-up (OH, GA, NV) on our web site.

These Holley throttle body rebuild kits will keep your engine operating efficiently. They include all necessary gaskets and O-rings to complete the rebuild of your Holley throttle body.


Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles

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