2020 Chevrolet Silverado 3500 HD LTZ Crew Cab Pickup Fleetside 6.6L Duramax V8 DIESEL A/T 4WD Engine Coolant Thermostat Housing Gasket - 12643149

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2020 Chevrolet Silverado 3500 HD LTZ Crew Cab Pickup Fleetside 6.6L Duramax V8 DIESEL A/T 4WD

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Engine Coolant Thermostat Housing Gasket

Part Number: 12643149

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Gasket. Thermostat. Engine Cooling Housing. hsng. Engine Coolant Housing. Water Neck.
Lower Housing. Thermostat Housing Gasket.

Engine Coolant Thermostat Housing Gasket

Fits Sierra 2500 HD, Sierra 3500 HD, Silverado

6.6 LITER DIESEL.
Engine Coolant Thermostat Housing - Repair or Replace
A failed thermostat housing will likely result in a cooling system leak, or will cause the engine in your 2020 Chevrolet Silverado to overheat. Consider replacing your engine coolant thermostat or having our staff of expert techs handle it for you.