Lower Valve Cover Gasket

Features:

• Direct replacement for lower valve cover
• Designed for Silverado and Sierra HD
• Helps prevent oil leaks and seepage
• Withstands heat and oil exposure
• Ideal to replace during maintenance
• Durable construction for long service life
• Maintains proper engine seal integrity
• Made for a precise OE-style fit

Ensure a Proper Seal with Merchant Automotive

When you're working on an LB7 Duramax, there are a few parts that are easy to overlook, but replacing them can save you serious headaches down the road. The Merchant Automotive Lower Valve Cover Gasket is one of those parts. It's a simple component, but it plays a critical role in keeping your engine sealed up and leak-free. If you’re already tearing into the top end for injector work or valve maintenance, now’s the time to swap this gasket out. Over years of heat cycles and exposure to engine oil, the original gasket can get brittle, shrink, or lose its ability to seal properly. That’s when you start seeing oil seep out around the valve cover, not only a mess, but something that can attract dirt and grime where you don’t want it. This gasket is built to OE standards, so you’re getting a clean, reliable fit without having to fight it during installation. It’s designed specifically for 2001–2004 GM 2500HD and 3500HD trucks with the 6.6L LB7 Duramax, so there's no guesswork involved.

Fitment: 2001, 2002, 2003, 2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7