The WCFab aluminum upper coolant pipe for 2017–2019 Chevrolet 6.6L L5P Duramax replaces the OEM rubber upper hose and comes finished in WCFab red powder coat. The aluminum pipe ships with silicone boots and stainless steel T‑bolt clamps and replaces GM part number 84094878. It offers a durable, serviceable alternative to the factory hose with a clean, color-matched appearance.
Wehrli 17-19 Chevrolet 6.6L L5P Duramax Upper Coolant Pipe - WCFab Red