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Replace the belt if you notice cracks
Reconnect the fuel lines to the correct ports on the new filter
Service intervals can vary based on operating conditions like saltwater use
Inspect for corrosion or damage
Thermostat Kit (140°F/60°C) – Fits MerCruiser 2.5L & 3.0L Stern Drives (Replaces 59078Q3, 18-3650) family-yamaha-4sk Replace the belt if youThermostat Kit (140F 60C) Fits MerCruiser 2. 5L & 3. 0L Stern Drives This thermostat kit is designed for MerCruiser 2. 5L (120HP) and 3. 0L (140HP) inline 4 cylinder and 6 cylinder GM engines (1998 and newer) equipped with cast iron exhaust manifolds. It serves as a direct replacement component for maintaining optimal engine operating temperature. Engineered to match OEM specifications, this kit directly replaces MerCruiser part numbers 59078Q3,