1998 Buick Century Thermostat. Seal. Gasket. Engine. Coolant. (Lower) - 12647181

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Part Number: 12647181

A circular disk covered in rubber or plastic with a hole in The center where The edge is sometimes tensioned by a spring that prevents fluid from leaking at The Engine Coolant Outlet Housing. Engine Coolant Thermostat Gasket. Engine Coolant Thermostat Housing Seal. Engine Coolant Thermostat Seal. Lower Housing to Engine. Thermostat Housing Gasket. Cooling Housing. Hsng. Unit. Water Neck. Included with: Thermostat Housing, Thermostat Unit, Water Outlet.

Engine Coolant Thermostat GasketEngine Coolant Thermostat Housing SealEngine Coolant Thermostat SealEngine Coolant Thermostat Housing GasketEngine Coolant Water Outlet Seal

3.0 LITER TWIN-TURBO. 3.6 LITER. 3.6 LITER, 2016-19. 3.6 LITER, 2016-2018. 3.6 LITER, 2017-22. 3.6 LITER, lower. 3.6 LITER, W/HEAVY DUTY COOLING. 3.6 LITER, W/O HEAVY DUTY COOLING. Acadia. ATS; w/o V-Series. Camaro. Canyon, Colorado. COUPE, 3.6 LITER, 2016-19. CT5. CT6; 3.0L. CT6; 3.6L. CTS; w/o Vsport. LaCrosse. Regal Sportback. SEDAN, 3.6 LITER, 2016-2018. XT5. XT6.

Diagrams and Kits What This Fits

Assemblies

Fitment/Applications

This product fits 597 vehicle variants.
Buick: 2 models, 26 variants between 2017 and 2020.
Cadillac: 6 models, 209 variants between 2014 and 2025.
Chevrolet: 3 models, 200 variants between 2016 and 2024.
GMC: 2 models, 162 variants between 2017 and 2023.