GM GENUINE 12638257
GM GENUINE part number 12638257 is a valve lash cap in the Engine system. This catalog matches it to 20 year-and-engine configurations from 2011 to 2023.
Verified fitment includes 2023 Chevrolet Silverado 2500 6.6L V8 DIESEL Turbocharged ; 2023 Chevrolet Silverado 3500 6.6L V8 DIESEL Turbocharged ; 2023 Chevrolet Silverado 4500 HD 6.6L V8 DIESEL Turbocharged ; 2023 Chevrolet Silverado 5500 HD 6.6L V8 DIESEL Turbocharged ; 2023 Chevrolet Silverado 6500 HD 6.6L V8 DIESEL Turbocharged , plus 15 other configurations. See every vehicle this part fits.
Frequently Asked Questions
What is GM GENUINE 12638257?
GM GENUINE part number 12638257 is a valve lash cap with published application data for 20 vehicle configurations from 2011 to 2023. Use the manufacturer part number to cross-reference your old part or a repair quote before you order.
Which vehicles does GM GENUINE 12638257 fit?
This catalog matches 12638257 to 20 year-and-engine configurations from 2011 to 2023. Open the compatible-vehicles list for every make, model and engine, and read the notes for position or trim qualifiers.
Is GM GENUINE 12638257 OEM or aftermarket?
What matters is the published application data for this part number, not the label on the box. GM GENUINE 12638257 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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