Sierra's 18-3451 Water Pump Kit is designed for use in Yamaha outboard engines. The kit contains: (1) Sierra 18-3042 Impeller, (1) Sierra 18-3162 Insert Cup, (1) Sierra 18-3143 Impeller Plate, (1) Sierra 18-7436 O-Ring, (1) Sierra 18-0239 Water Pump Gasket, (1) Sierra 18-0240 Water Pump Gasket, (1) Sierra 18-3301 Impeller Key, (2) Sierra 18-2605 Bolts, (2) Sierra 18-2606 Bolts, (1) Water Pump Gasket, and (4) Bolt Washers. It is interchangeable with Mallory 9-48608 and Yamaha Outboard 67F-W0078-00-00. Each Sierra product meets or exceeds the original equipment part it replaces.
