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Wehrli 17-23 Chevrolet/GMC 6.6L L5P Duramax Up Pipe Bolt Kit
Wehrli Up Pipe Bolt Kit — 2017-2023 Chevrolet/GMC 6.6L L5P Duramax
Ensure leak-free up pipe connections on your 2017-2023 Chevrolet/GMC 6.6L L5P Duramax with the Wehrli Custom Fabrication Up Pipe Bolt Kit. The factory up pipe bolts on the L5P Duramax are known to stretch, corrode, and fail — especially after multiple install/removal cycles during maintenance and upgrades. Wehrli's purpose-built bolt kit provides high-strength replacements that maintain proper clamping force and prevent exhaust leaks at the up pipe connection, keeping your L5P running clean and efficient.
Key Features
- High-strength bolts engineered for the L5P Duramax up pipe connection
- Designed for 2017-2023 Chevrolet and GMC 6.6L L5P Duramax trucks
- Prevents exhaust leaks caused by worn, stretched, or corroded factory bolts
- Complete kit — everything needed for proper up pipe installation
- Essential upgrade when installing aftermarket up pipes or during engine maintenance
- Manufactured by Wehrli Custom Fabrication to diesel performance standards
The Right Hardware for Your L5P Build
Exhaust leaks at the up pipe are a common nuisance on Duramax engines, and often originate from failed factory hardware rather than the pipes themselves. Wehrli's bolt kit is the smart, preventative solution — especially for L5P owners who are upgrading their up pipes or performing regular diesel maintenance and want to avoid repeat exhaust leak issues down the road.
Fitment: 2017-2023 Chevrolet/GMC 6.6L L5P Duramax
Part Number: WCF100199
Brand: Wehrli Custom Fabrication (WCFab)