Sierra's 18-4380 Timing Chain Gasket Set is designed for use with Mercruiser 165 HP, 170 HP, 180 HP, 190 HP, 470 HP, 485 HP, and 488 HP (224 CID) engines. The set contains (1) Water Inlet Cover Gasket, (1) Front Cover to Cylinder Block Gasket, (1) Impeller Cover to Front Cover Gasket. It is interchangeable with GLM 30300, Mallory 9-61010, and Mercruiser Stern Drive 27-68714A6 and 27-68714A7. Each Sierra product meets or exceeds the original equipment part it replaces. Fit specific, check part numbers to ensure proper fit.
