GM GENUINE 12638677
GM GENUINE part number 12638677 is a turbocharger gasket in the Engine system. This catalog matches it to 7 year-and-engine configurations from 2016 to 2026.
Verified fitment includes 2026 Cadillac CT4 3.6L V6 Turbocharged ; 2025 Cadillac CT4 3.6L V6 Turbocharged ; 2022 Cadillac CT4 3.6L V6 Turbocharged ; 2018 Cadillac CTS 3.6L V6 Turbocharged ; 2017 Cadillac Ats 3.6L V6 Turbocharged , plus 2 other configurations. See every vehicle this part fits.
Frequently Asked Questions
What is GM GENUINE 12638677?
GM GENUINE part number 12638677 is a turbocharger gasket with published application data for 7 vehicle configurations from 2016 to 2026. Use the manufacturer part number to cross-reference your old part or a repair quote before you order.
Which vehicles does GM GENUINE 12638677 fit?
This catalog matches 12638677 to 7 year-and-engine configurations from 2016 to 2026. Open the compatible-vehicles list for every make, model and engine, and read the notes for position or trim qualifiers.
Is GM GENUINE 12638677 OEM or aftermarket?
What matters is the published application data for this part number, not the label on the box. GM GENUINE 12638677 is listed with its manufacturer part number so you can compare it to an OEM number or another brand that covers the same fitment.
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