Quicksilver 27-817277-1 Water Pump GasketWater pump gasket 8172771 fits Mercury F40-60 FourStroke BigFoot/Command Thrust, Mercury and Mariner 60hp 2-stroke Big Foot (serial No. 0D000750 and above) outboards and all Mercury 75-115hp 4-stroke outboards and the 150hp EFI 4-stroke outboard. It will also fit Mercury or Mariner 70-90hp (3-cylinder) 2-stroke outboards (serial No. 0A996142 and above) and Mercury or Mariner 100-125hp (4-cylinder) 2-stroke outboards having pump cover screws without insulators. The gasket will also fit Mercury V-200/225/250 (3.0L) 2-stroke outboards and all 4-cylinder and 6-cylinder Verado outboards with the 4.80 in. diameter gear case. The water pump gasket is also for use on MerCruiser Alpha One Gen II sterndrives (serial No. 0D436859 and above).Application : Fits 40-125hp and 2.5L & 3.0L V6 outboards: also Alpha One Gen II sterndrives For select MerCruiser sterndrives and Mercury and Mariner 2-stroke and 4-stroke outboards 30-400hp; Water pump repairs or replacement may require other gaskets or seals; Produced to meet Mercury Marine original equipment manufacturer specifications to maximize the performance of your Mercury, Mariner or Force outboard and MerCruiser sterndrive; See your owner's or service manual for instructions; Replaces: GLM 31240; Mallory 9-60023; Redline RL2566; Sierra 18-2566;