6 Liter Duramax in Silverado and Sierra 2500Hd/3500Hd trucks, as well as LLY, LMM and Lgh Express and Savana vans. Each upper valve cover bolt uses one grommet to seal the bolt and isolate the cover from engine noise and vibration. The upper valve covers come off for injector work, glow plug access on some jobs and valve cover resealing, and after years of heat the rubber grommets harden and flatten.

Reused grommets are a common source of oil seeps around the valve cover bolts. A fresh set seals the cover properly when it goes back on.

Key Features

• Set of 14: one bank (one side) of the engine
• Replaces GM 97315638
• Seals each upper valve cover bolt and isolates noise and vibration
• Fits LLY, LBZ, LMM, LML and Lgh Duramax

Benefits

Details:

• Engine Manufacturer: Duramax
• Liter: 6.6 Liter
• Engine Designation: LLY, LBZ, LMM
• Engine Years: 2004-2016
• Location: Upper

Applications:

• 2004-2016 Silverado/Sierra 2500HD/3500HD LLY/LBZ/LMM