6 Liter Duramax Silverado or Sierra 2500Hd/3500Hd. On the LB7, the injectors sit under the lower valve cover, so every injector job means removing it. This kit combines our LB7 Injector Seal Kit (copper washers, injector O-rings and body seals), our LB7 Injector Return Line Seal Kit (return line seals and banjo seal) and a new lower valve cover gasket.

Reused seals can let fuel leak under the valve cover and into the engine oil, and a reused valve cover gasket can leak oil.

Key Features

• Complete injector and lower valve cover reseal for one bank
• Injector copper washers, O-rings and body seals for 4 injectors
• Large inje

Details:

• Engine Manufacturer: Duramax
• Liter: 6.6 Liter
• Engine Designation: LB7
• Engine Years: 2001-2004

Applications:

• 2001-2004 Silverado/Sierra 2500HD/3500HD LB7