Description
Sierra’s 18-3668 Thermostat Kit fits GM V-6 and V-8 engines with standard cooling ( 1983 and newer). The kit contains (1) 18-2552 Thermostat Gasket Cover, (1) 18-2553 Thermostat Gasket, (1) 18-2554 Thermostat Cover Gasket, (1) 18-2917 Thermostat Housing Gasket, (1) 18-3551 Thermostat, and (1) 18-7173 O-Ring. It is interchangeable with GLM 13390, Mallory 9-43150, and Mercruiser Stern Drive 807252Q4, 807252T4, 807252T7. Each Sierra product meets or exceeds the original equipment part it replaces.
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