Item ID: 
P-249
							Make: 
Chevrolet
							
							
							This premium 180 Degree Thermostat will fit 1928-1991 GM engines with 2-1/8" openings. MotoRad Fail-Safe Thermostats offer premium, patented technology for superior protection over any thermostat on the market. When standard thermostats fail, they lock in the closed position and prevent coolant flow to the engine, which can possibly cause serious damage to your engine. Only Fail-Safe is designed to lock in the open position when overheating occurs due to a failing cooling system component. This allows maximum coolant flow, thus preventing expensive engine damage.
    100% tested and calibrated
    Manufactured with the highest quality materials from an OE supplier
Fail-Safe thermostats are designed with a unique extra stroke that allows operation in two stages:
Stage 1: Within normal operating temperatures, the Fail-Safe operates the same as any other thermostat.
Stage 2: If the engine overheats due to a deteriorating cooling system part, the Fail-Safe has a secondary stroke that activates a precision engineered piston that automatically locks the valve into a wide open position, allowing coolant to circulate freely.  Replaces GM# 3123995, 3133698
Note: Once the Fail-Safe thermostat has locked in the open position, it must be replaced and cannot be used again 
							
							This part fits most 1928  1929  1930  1931  1932  1933  1934  1935  1936  1937  1938  1939  1940  1941  1942  1946  1947  1948  1949  1950  1951  1952  1953  1954  1955  1956  1957  1958  1959  1960  1961  1962  1963  1964  1965  1966  1967  1968  1969  1970  1971  1972  1973  1974  1975  1976  1977  1978  1979  1980  1981  1982  1983  1984  1985  1986  1987  1988  1989  1990  1991 Chevrolet Cars and Trucks.; exceptions may apply.  Please read the complete description to see if this part fits your specific vehicle and application.
							
						
							
							 
							This product can expose you to a chemical, which is known to the State of California to cause cancer or reproductive harm.
							For more information go to www.P65Warnings.ca.gov