For 1967-1974 GMC C25/C2500 Pickup Thermostat 81113ZF 1968 1969 1970 1971 1972

Notes: Fail-Safe -- The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating.; Temperature 195F; OE Specified Temperature.