Wehrli L5P Duramax Thermostat Housing - Illusion Blueberry

The stock thermostat housing on your 2017-2025 6.6L Duramax can look a bit plain, but this direct replacement from Wehrli changes that. It's powder coated in a sharp Illusion Blueberry finish, designed to complement other WCFab engine bay components like their intake kits and coolant pipes. This isn't just about looks, though; it's a solid upgrade that fits right in place of the original part.

Wehrli builds these housings to be a direct replacement, meaning installation is straightforward without needing any special modifications. The custom powder coat finish not only looks good but also helps protect the housing. If you're looking to tidy up your engine bay and add a touch of custom color, this housing is a great way to do it, especially if you already have other WCFab parts installed.