Wagler C6658 Street Girdle | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Features:

• One-piece 1/2" thick girdle design
• Strengthens Duramax lower engine support
• Ties main caps to oil pan bolts
• Includes ARP main studs and hardware
• ARP cross bolts and washers included
• Comes with lube packet for install
• Oil pan hardware included
• Pick-up tube hardware provided
• Fasteners extended for easier installation
• Requires machining on factory main caps
• Fits 2001–2010 Duramax 6.6L engines
• Proudly made in the USA

Reinforce Your Duramax Where It Matters Most

If you're building a Duramax that sees real-world abuse—whether you're chasing horsepower or hauling heavy—bottom-end stability becomes a serious concern. That’s where the Wagler C6658 Street Girdle comes in. Designed specifically for 2001 to 2010 GM Silverado and Sierra 2500HD and 3500HD trucks with the 6.6L Duramax, this one-piece girdle is a simple but critical upgrade. At half an inch thick, it’s not just for show. It ties the main caps to the oil pan bolts, adding much-needed rigidity to the bottom end of your block. That added support helps prevent main cap walk, cap shift, and block distortion—issues that become increasingly common as you push more power or run the engine under heavy load for extended periods.

Complete Kit Built for Real-World Builds

Wagler doesn't leave you piecing things together. This girdle kit includes everything you need to get the job done right the first time. ARP main studs, cross bolts, washers, and even a lube packet are all part of the package. You also get hardware for the oil pan and pick-up tube, and each fastener—except the cross bolts—is extended for proper fitment and easier installation. The only extra step you’ll want to plan for is machining the factory main caps to accept the girdle, a small investment considering the long-term protection you’re getting. Made in the USA and built with precision, this street girdle is the kind of upgrade you don’t see—but you’ll definitely feel the confidence it brings once you're pushing your Duramax to its limits.

Fits: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax