65 amp alternator 863077T is for the MerCruiser 100 Vazer (model year 2001 through 2016), V-6 and V-8 MerCruiser stern drive and inboard engines made by General Motors (serial number 0M3200025 through 2A528897), MerCruiser 496 Magnum and HO (high output) stern drive engines and MerCruiser 8.1L and HO inboard engines. See your service manual for replacement directions. Easy to change out your non-functioning alternator with common shop tools. 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.