Wehrli GM Duramax LML Thermostat Housing - Flat Black - WCF100176-FB

This Thermostat Housing for 2011-2016 6.6L Duramax is a direct replacement upgrade for the aging, ugly, corroded OEM part. Comes powder coated in your choice of color to complement other upgrades such as Wehrli's Intake Kit, Intercooler Piping, Upper Coolant Pipe, and Coolant Tank.

Replaces the following GM part numbers: 12642717, 12645998