GM EGR Bypass Valve
Fits 2011-2016 Chevy/GMC 2500/3500 HD LML
Part# 12639421
If your EGR bypass valve is stuck and setting codes replace it with this genuine GM replacement. It is recommended to get the install kit when changing this valve.
Includes:
- 1 x GM EGR bypass valve Part# 12639421
Optional:
- EGR Install Kit