Buick Century Engine Core Plug - 12646961

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Part Number: 12646961

Plug.
10.50mm. Location-Cylinder Head. Plug that prevents the engine block or cylinder head from cracking in case of freezing coolant. Also used to plug the casting holes from production. CYLINDER HEAD OIL GALLON. Engine Core. Engine Expansion. Engine Freeze. Engine Welch.

Engine Expansion Plug

What This Fits

Fitment/Applications

This product fits 903 vehicle variants.
Buick: 4 models, 108 variants between 2014 and 2020.
Cadillac: 3 models, 274 variants between 2013 and 2019.
Chevrolet: 8 models, 304 variants between 2013 and 2023.
GMC: 3 models, 217 variants between 2015 and 2022.