Motorad Engine Coolant Thermostat Housing Assembly P/N:4314KTFS
Motorad 4899KTFS engine coolant thermostat housing assembly for the 1974-1976 Chevrolet Impala V8 6.6L or 7.4L, the 1974-1981 Impala V8 5.7L, the 1977-1981 Impala V8 5.0L, the 1980-1981 Impala V8 4.4L and other vehicles regulates coolant flow so the engine reaches and holds its operating temperature. It is a fail-safe thermostat kit rated at 195 degrees.
A temperature gauge that climbs, a slow warm-up or coolant seeping at the housing can mean this assembly is worn, though the water pump or the radiator can be behind them too, so trace the cause before you order. If the assembly is the cause, this one replaces it. Each engine takes one.
The 1978-1979 Chevrolet Malibu V6 3.3L, the 1978-1981 Malibu V8 5.0L or 5.7L, the 1979-1980 Malibu V8 4.4L and the 1987-1989 Chevrolet Suburban V8 5.7L are among the vehicles it fits, together with a wide range of others. Its original equipment design makes it a direct-fit replacement. If your vehicle is not named here, look for your year and engine on the Buyer's Guide tab.
Fit and size
Build and materials
One thermostat housing assembly and one paper gasket. Mounting hardware is not included, so plan on new bolts.
Interchange: SFTK9984 · 94899KTFS
This part cross-references / interchanges with the following part numbers:
Will the Motorad 4899KTFS fit a 1977-1981 Chevrolet Impala V8 5.0L?
Yes. Motorad 4899KTFS fits the 1977-1981 Chevrolet Impala V8 5.0L, and each engine takes one assembly.
Is the Motorad engine coolant thermostat housing assembly sold with a gasket?
Yes. Motorad 4899KTFS comes with one paper gasket. Mounting hardware is not included, so plan on new bolts.
What temperature does this thermostat housing assembly open at?
This assembly is rated at 195 degrees and starts to open at 90.56 °C. It has a mechanical actuator and a disk valve.
How can I tell if this thermostat housing assembly is failing?
A gauge that reads high, an engine slow to warm up or coolant seeping at the housing can mean the assembly is worn. Look for seepage only with the engine off and cool; a shop can test the cooling system.
What is the Motorad 4899KTFS made of?
Motorad 4899KTFS is made of copper, paper, stainless steel and steel. Its copper case and wax compound respond quickly to coolant temperature changes.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.