Thermostat Repair Service Kit for Mercruiser 4.3L 5.0L 5.7L 7.4L V6 V8 SternDrive Motors 807252Q4 family-yamaha-f15leha0112 tightening it snugly but not

tightening it snugly but not over-torquing

Remove lower unit: Disconnect shift linkage and unbolt the lower unit from the mid-section

and black smoke from the exhaust

Visible water or debris in the old filter is also a clear indicator for replacement

Housing Material: Soft

Thermostat Repair Service Kit for Mercruiser 4.3L 5.0L 5.7L 7.4L V6 V8 SternDrive Motors 807252Q4 family-yamaha-f15leha0112 tightening it snugly but notThermostat Kit 140F Fits MerCruiser 4. 3L 5. 0L 5. 7L 7. 4L V6 V8 SternDrive (Replaces 807252Q4) This thermostat kit is designed for a wide range of Mercury MerCruiser V6 and V8 gasoline stern drive engines (262 454 CID) manufactured between 1983 and 2016 with standard cooling systems. It ensures your engine operates at the correct temperature for optimal performance and longevity. It serves as a direct replacement for multiple OEM and aftermarket