This Thermostat Housing for 2017-2025 6.6L Duramax is a direct replacement upgrade for the unsightly OEM part. Comes powder coated in your choice of color to complement other WCFab upgrades such as our Intake Kit, Intercooler Piping, Upper Coolant Pipe, and Coolant Tank.
This Part Fits:
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2021-2025 | Chevrolet | Silverado 2500 HD | Custom |
| 2017-2025 | Chevrolet | Silverado 2500 HD | High Country |
| 2017-2025 | Chevrolet | Silverado 2500 HD | LT |
| 2017-2025 | Chevrolet | Silverado 2500 HD | LTZ |
| 2017-2025 | Chevrolet | Silverado 2500 HD | WT |
| 2024-2025 | Chevrolet | Silverado 2500 HD | ZR2 |
| 2017-2025 | Chevrolet | Silverado 3500 HD | High Country |
| 2017-2025 | Chevrolet | Silverado 3500 HD | LT |
| 2017-2025 | Chevrolet | Silverado 3500 HD | LTZ |
| 2017-2025 | Chevrolet | Silverado 3500 HD | WT |
| 2020-2025 | GMC | Sierra 2500 HD | AT4 |
| 2024-2025 | GMC | Sierra 2500 HD | AT4X |
| 2017-2021 | GMC | Sierra 2500 HD | Base |
| 2017-2025 | GMC | Sierra 2500 HD | Denali |
| 2024-2025 | GMC | Sierra 2500 HD | Denali Ultimate |
| 2022-2025 | GMC | Sierra 2500 HD | Pro |
| 2017-2025 | GMC | Sierra 2500 HD | SLE |
| 2017-2025 | GMC | Sierra 2500 HD | SLT |
| 2020-2025 | GMC | Sierra 3500 HD | AT4 |
| 2017-2021 | GMC | Sierra 3500 HD | Base |
| 2017-2025 | GMC | Sierra 3500 HD | Denali |
| 2024-2025 | GMC | Sierra 3500 HD | Denali Ultimate |
| 2022-2025 | GMC | Sierra 3500 HD | Pro |
| 2017-2025 | GMC | Sierra 3500 HD | SLE |
| 2017-2025 | GMC | Sierra 3500 HD | SLT |