Thermo Controls

This thermostat kit fits small and big block Chevy. Many marine engines run far too cold to obtain proper combustion temperature, resulting in lower power output, economy and engine life. Most engines are designed to run at a minimum water temperature of...

Hardin Marine thermo kit replacement spring.  Need help or advice with inboard ski boat parts? Simply send us your query click here to send an email  NOTE: Please make your selection carefully, refunds only apply to defective products...

Replacement Bypass Valve for Hardin Marine Thermo Kit Need help or advice with inboard ski boat parts? Simply send us your query click here to send an email  NOTE: Please make your selection carefully, refunds only apply to defective products...