Gear Lube Pump 850730Q1 fits Mercury or Quicksilver 2.5 gallon jug of all grades of gear lube. It makes filling the gearcase or drive faster and easier for winterizing the boat or just changing gear lube in season. The metal fitting at the gear case end of the clear feed tube screws into gearcases with 3/8" 16 gear lube drain/fill hole. The adapter fits all Mercury, Mariner or Force outboards and all MerCruiser stern drives. The metric adapter 883704Q03 is required for Mercury or Mariner outboards produced in Japan. 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.