Fits: 2001 thru 2016 Chevy Silverado/GMC Sierra 2500HD/3500HD LB7/LLY/LBZ/LMM/LML Duramax Diesel

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"