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Add to CartThe Mercury-MerCruiser 475901 Water Distributor Block Gasket is a replacement gasket designed to help seal the water distributor block in compatible Mercury and MerCruiser applications. This gasket should be replaced whenever the water distributor block is removed or serviced to help prevent leaks and maintain proper cooling system operation.
A worn, damaged, or compressed gasket can lead to water leaks or poor sealing at the distributor block. Replacing the gasket during service helps ensure the cooling system components seal correctly when reassembled.
Fitment Note: Mercury and MerCruiser parts should be verified by engine serial number, parts diagram, or existing part number whenever possible. Please confirm this water distributor block gasket is correct for your application before purchasing.
California Residents: 
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov
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