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The WCFab ARP up-pipe bolt kit for 2001–2016 Chevrolet 6.6L Duramax engines replaces aging OEM fasteners used on up pipes and LB7 turbo down pipes. The kit includes six high-strength 12-point ARP fasteners, matched washers and assembly lube, and is specified to torque to 54 ft‑lbs. It is offered as a robust upgrade to reduce failure risk during service; refer to application notes and purchase two sets when installing both up pipes.
Wehrli 01-16 Chevrolet 6.6L LB7/LLY/LBZ/LMM/LML Duramax Up Pipe Bolt Kit
