Water Pump Base - Upper Gasket 858524

Water pump gasket 858524 is for use on MerCruiser 1, R, MR and Alpha One sterndrives (serial No. 2495186-0D469858), Mercury and Mariner 65hp (4-cylinder) through V6 outboards with short-vane water pump impellers. Change seals and gaskets when servicing or replacing water pump impellers. See your owner's manual or service manual for more information. The Quicksilver brand is the leader in delivering uncompromising engine oils, parts and accessories to the marine industry for over 65 years. Quicksilver is the premier supplier of Mercury Marine original equipment replacement engine parts, oils, and accessories, but also works to serve all original equipment brands in the marine and powersports industries. It has earned a loyal following by providing the highest quality products that are tested through some of the most rigorous environments and testing procedures. No aftermarket company comes close to the level of research and design as Quicksilver; buying Quicksilver is buying performance, protection and peace of mind. - For select MerCruiser sterndrives and Mercury and Mariner outboards - Replace seals and gaskets when replacing water pump impellers to ensure proper cooling for your engine - Replace with common shop tools - See your owner's or service manual for instructions