ARP 400-7532 Hex Head Valve Cover Bolt Kit | 2001-2004 GM 2500HD/3500HD 6.6L Duramax LB7

Features:

• Designed specifically for LB7 engines
• Includes 8mm hex head bolts
• 1/4-20 thread size for proper fit
• Washers included for even clamping
• Improves valve cover sealing performance
• Prevents leaks from worn factory bolts
• Ideal for maintenance or performance builds
• Made from high-strength ARP material
• Black oxide finish resists corrosion

Valve Cover Bolt Kit for GM 6.6L Duramax LB7

If you're diving into an LB7 valve cover job, do yourself a favor and don’t reuse those tired stock bolts. The ARP Hex Head Valve Cover Bolt Kit is a solid upgrade that makes a noticeable difference in both fit and function. Whether you’re chasing down oil seepage or doing a full top-end refresh, this kit is built to handle it all with confidence. Designed specifically for the 2001–2004 6.6L Duramax LB7, these bolts are a direct-fit replacement that takes the guesswork out of the install. Each one features a standard 8mm hex head, so you can use basic hand tools—no specialty sockets required. That means less hassle in tight engine bay spaces, especially if you're wrenching in the truck instead of on a stand.

High-Strength Construction

The bolts are made from ARP’s high-strength material, known for holding torque and resisting stretch far better than the factory hardware. That’s a big deal when you’re trying to maintain consistent sealing pressure around the valve cover. The included washers help distribute that pressure evenly, which keeps leaks at bay and protects the cover from distortion over time. With a clean black oxide finish, these bolts not only perform better—they look sharper, too. Whether you're building a clean daily or putting together a diesel that’s built to tow hard and run long, this is one of those small upgrades that brings real-world value. It's the kind of part that disappears once it's installed—quietly doing its job, mile after mile.

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