12mm Gorilla Girdle with ARP Main Studs

Features:

• Fits 2003-2018 5.9L and 6.7L Cummins
• Includes heavy-duty Gorilla Girdle brace
• Comes with ARP 12mm XL main studs
• Improves bottom end rigidity and strength
• Helps reduce main cap walk and flex
• Ideal for high-horsepower and towing builds
• Includes all spacers and hardware needed
• Designed for extreme load and torque support
• Precision machined for exact fit and alignment
• Tested to handle 125 ft lbs of torque
• Prevents crankshaft movement under heavy stress
• Compatible with factory-style girdle or tray

Lock Down Your Bottom End With Confidence

If you're building serious power in your 5.9L or 6.7L Cummins, the stock bottom end isn't going to cut it for long. The Industrial PDM-06020 12mm Gorilla Girdle with ARP Main Studs is the reinforcement your block needs when torque numbers start climbing. Whether you're hauling heavy, chasing quarter-mile numbers, or just want bulletproof reliability, this setup helps prevent main cap walk and crankshaft distortion under extreme loads. It includes a heavy-duty Gorilla Girdle, premium ARP 12mm main studs, and all the necessary spacers, nuts, and hardware for a complete install. This isn’t just a basic stud kit, it’s a full system engineered to tie the bottom of the block together and keep it that way. The added rigidity it provides is a must for anyone pushing the limits of their Cummins. If you're planning to go big with boost, fuel, or both, this girdle kit gives you the peace of mind to do it right.

Engineered To Strengthen And Stabilize Under Pressure

The Gorilla Girdle kit is precision built to reinforce the main bearing caps across 2003-2018 Cummins engines, providing crucial support where it's most needed. Each kit includes 12mm ARP 2000 main studs rated to torque down at 125 ft lbs, along with top and bottom spacers, nylock and 12-point nuts, and a rear main spacer bar for full coverage. The girdle helps distribute clamping force evenly across all mains, minimizing flex and helping maintain crankshaft alignment during heavy acceleration or sustained high-load conditions. It’s especially valuable for trucks running high boost, aggressive tuning, or hard towing applications that push the factory bottom end past its comfort zone. On 6.7L models equipped with a factory windage tray instead of a girdle, additional parts like early-style oil pickup tube bolts and tubes may be required to complete the install. Industrial Injection is currently working on a solution to streamline this process. Until then, it’s important to plan your build accordingly to avoid delays during installation.

Fitment: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Dodge RAM 2500/3500 5.9L/6.7L Cummins

Notes:

• Designed for 2003-2018 5.9L and 6.7L Cummins engines
• Includes 12mm ARP 2000 main studs rated at 125 ft lbs
• Kit comes complete with spacers, nuts, and hardware
• Helps prevent main cap walk and crankshaft flex
• Recommended for high-horsepower or heavy-load builds
• Requires removal of factory windage tray on some 6.7L models
• May need early-style oil pickup tube and bolts for installation
• Industrial Injection is developing a long-term solution for 6.7L fitment
• Not a simple drop-in, proper installation planning is important
• Ideal for performance builds running increased boost and fuel