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Add to CartThe Mercury-MerCruiser 866027 Carburetor Base Gasket is a genuine OEM replacement gasket for compatible Mercury and MerCruiser carburetor applications. This gasket is designed to seal the carburetor base where specified by the Mercury-MerCruiser parts diagram.
Using the correct carburetor base gasket helps support proper sealing, fuel-air mixture control, and reliable engine performance during carburetor service or repair. Always verify fitment by engine model, carburetor type, serial number, parts diagram, gasket location, or existing part number before ordering.
Fitment Note: Carburetor base gasket fitment should be verified by engine model, carburetor type, serial number, parts diagram, gasket location, and existing part number before ordering. Please confirm this carburetor base gasket is correct for your Mercury or MerCruiser application before purchasing.
California Residents: 
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov
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