Thermostat Kit (160°F/71°C) – Fits Mercruiser 3.7L 4-Cylinder Engines (Replaces 99155T1, 99155T2) family-yamaha-115etlh 1 x Impeller Assembly (389576/18-3091)

1 x Impeller Assembly (389576/18-3091)

Check for leaks around all serviced areas

but it is designed for use with the existing water pump housing (6AW-44311-01-00)

Notes MerCruiser All models Various Various all 822777Q1 For applications requiring extra clearance for high-rake propellers

removing old gasket material and corrosion

Thermostat Kit (160°F/71°C) – Fits Mercruiser 3.7L 4-Cylinder Engines (Replaces 99155T1, 99155T2) family-yamaha-115etlh 1 x Impeller Assembly (389576/18-3091)Thermostat Kit (160F 71C) Fits Mercruiser 3. 7L 4 Cylinder Engines This thermostat kit is designed for Mercruiser 165 190 HP, 4 Stroke, 3. 7L inline 4 cylinder (224 CID) engines manufactured between 1976 and 1989. It provides a reliable, direct replacement for original equipment to maintain optimal engine operating temperature. This kit is a direct replacement for Mercruiser part numbers 99155T1, 99155T2, 991551, 99155A1; Sierra 18 3555, 18 3568, 18