Sierra's 18-3327 Water Pump Kit with Housing is designed for use with Johnson/Evinrude outboard engines. The kit contains: (1) Sierra 18-2025 Oil Seal, (1) Sierra 18-2392 Grommet, (1) Sierra 18-3050 Impeller, (1) Sierra 18-3178 Wear Plate, (1) Sierra 18-3179 Water Pump Cup, (1) Sierra 18-3180 Water Pump Housing, (1) Sierra 18-3326 Impeller Key, (1) Sierra 18-3329 Grommet, (4) Sierra 18-3369 Stainless Steel Bolts, (1) Sierra 18-7116 O-Ring, and (1) Sierra 18-7139 O-Ring. It is interchangeable with Mallory 9-48201, GLM 12050, and Johnson/Evinrude Outboard 386697, 387610, 389112, 391698, and 394711. Each Sierra product meets or exceeds the original equipment part it replaces. Fit specific, check part numbers to ensure proper fit.