EGR Valve Gasket 99-13 Chevy LS

The EGR Valve Gasket 99-13 Chevy LS is a crucial engine sealing component designed to prevent exhaust gas recirculation leaks on Gen III and Gen IV LS-platform engines. This gasket is essential for those rebuilding an LS motor, addressing valve cover seals, or performing routine maintenance on Chevrolet, GMC, or Cadillac LS engines.

Manufactured by MAHLE ORIGINAL/CLEVITE under part number G31620, this OEM-specification gasket is engineered to withstand high temperatures and variable pressures typical of LS engines. Its precision-cut composite material resists blowout and degradation, ensuring a reliable seal across the full RPM range, which is critical for maintaining combustion efficiency.

LS swap builders, street rodders, and daily drivers will find this replacement gasket particularly beneficial when performing top-end work or troubleshooting lean-running conditions associated with exhaust gas leakage. Its compact footprint guarantees an exact fit to the OEM flange, preventing micro-gaps that can lead to rough idle and increased emissions.