Wehrli 2020-2024 Chevrolet 6.6L L5P Duramax Upper Coolant Pipe - Deore Gold

This kit gives you a fabricated aluminum upper coolant pipe, silicone boots, and stainless steel T-bolt clamps. It’s designed to replace the stock rubber upper radiator hose on your 2020-2025 Chevrolet Silverado 2500 HD or 3500 HD, or GMC Sierra 2500 HD or 3500 HD equipped with the 6.6L L5P Duramax engine. This part is finished in a Deore Gold powder coat to clean up the look of your engine bay.

The aluminum pipe is a solid option over the factory rubber hose, which can degrade over time. This setup uses silicone boots to connect to the radiator and the thermostat housing, and includes stainless steel T-bolt clamps for a secure fit. It’s a direct replacement for GM part numbers 84813629 and 85122989, meaning it fits stock trucks without needing any modifications. The custom powder coat finish not only looks good but also adds a layer of protection.

Installation is straightforward and can be done with basic hand tools. This pipe is made to work with the OEM GM radiator, so be aware that aftermarket radiators might cause fitment issues.