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compression ratio
and oil service life
Manufactured from SAE 9254 chrome silicon steel with a durable tangerine powdercoat finish
The hollow construction saves 2
Part 72322 is configured for its specific application with attention to fitment requirements
Sierra Marine 18-3683 Air & Fuel Delivery compression ratioThe Sierra Marine 18 3683 is a precision thermostat or thermostat housing engineered for accurate engine temperature regulation. Compatible with a wide range of performance and OEM applications, it opens precisely at the rated temperature to allow coolant flow to the radiator. A properly functioning thermostat is the key to consistent operating temperatures and optimal engine performance. This unit is rated to open at 172F with a failsafe design that
