Eliminate coolant leaks and upgrade the appearance of your 2017-2019 Chevrolet 6.6L L5P Duramax cooling system with the Wehrli Custom Fabrication Billet Aluminum Upper Coolant Pipe in Gloss Black. The factory plastic/rubber upper coolant pipe is a known failure point on the L5P Duramax platform, and the WCF billet replacement solves the problem permanently with a precision-machined, leak-proof aluminum unit built to last the life of the truck.
The WCF100742-GB features a smooth Gloss Black powder coat finish that adds a clean, professional look to the engine bay while standing up to engine heat, coolant exposure, and underhood grime. Designed as a direct OEM replacement, installation requires no cutting or drilling.
Key Features
- Fits 2017-2019 Chevrolet Silverado 2500/3500 with 6.6L L5P Duramax
- Replaces failure-prone factory plastic upper coolant pipe
- Precision billet aluminum construction — permanent fix for the OEM coolant pipe failure
- Gloss Black powder coat finish for a premium underhood look
- Direct OEM bolt-on replacement — no modifications required
MPN: WCF100742-GB