GM Genuine Parts 12640403 Throttle Body Gasket OEM Replacement
GM Genuine Parts 12640403 Throttle Body Gasket is a genuine OEM gasket engineered to properly seal the throttle body to the intake manifold. Designed to match the fit, form, and function of the original part, it helps prevent unmetered air and vacuum leaks that can cause rough idle, poor performance, and check engine lights.
Description
The GM Genuine Parts 12640403 Throttle Body Gasket is a factory‑style replacement designed to restore a correct seal between the throttle body and the intake. Over time, original gaskets can harden, flatten, or crack, leading to air leaks that affect idle quality, fuel trims, and overall drivability.
This genuine GM gasket is made to the same specifications as the original part to help maintain proper engine performance and reliability.
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