Wehrli 17-19 Chevrolet 6.6L L5P Duramax Upper Coolant Pipe - WCFab Red

If you're working on your 2017-2019 Chevrolet Silverado 2500 HD or 3500 HD, or its GMC Sierra counterparts, and you've got the 6.6L L5P Duramax engine, this upper coolant pipe from Wehrli Custom Fabrication is a solid upgrade over the factory rubber hose. It's designed to replace GM Part Number 84094878, directly swapping out the original part for a more robust solution.

This pipe is constructed from aluminum, which is a lighter and often more durable material than the stock rubber hose, especially under high heat and pressure. It's finished in a custom WCFab Red powder coat, giving your engine bay a clean, custom look. The kit includes silicone boots for a secure seal and stainless steel T-bolt clamps, which offer strong, reliable clamping force to prevent leaks. This setup is a popular choice for those looking to improve the longevity and appearance of their cooling system.