PPE Replacement Engine Mount Silicone Bushings
Fits: 2001-2010 (LB7, LLY, LBZ, LMM) 2500HD/3500HD Duramax
Part# 1680301XX
Replace your worn out bushings on your PPE engine mounts or just looking into changing the silicone hardness for your application.
Silicone Bushing Hardness:
- Blue - 40 Hardness "Softest"
- Green - 50 Hardness "OEM Firmness"
- Yellow - 60 Hardness
- Red - 70 Hardness "Firmest"