Mercury Parts Manual - 90-824418965. The Mercury Parts Manual 90-824418965 is the official reference for locating, identifying, and ordering genuine replacement parts for your Mercury outboard engine. With clear diagrams and accurate part listings, this manual ensures that boat owners and technicians can maintain peak performance with factory-specified components.. Key Features. Official OEM Documentation - Direct from Mercury Marine, this manual includes the most accurate and up-to-date parts l