The Interstate-McBee M-3802968 180 Degree Thermostat Kit will help maintain the proper engine coolant temperature in your 3.9L 4BT Diesel Engine. This thermostat kit is a drop-in replacement and includes the gasket you need for installation. Constructed to the same specifications as the factory unit, this thermostat maintains factory function for reliability.
Features:
- Drop-In Replacement
- Maintains Factory Function
- Meets Factory Specifications
- Made From High-Quality Materials
Disclaimer: XDP is in no way affiliated with Cummins or any of its subsidiaries or related companies, and that Cummins has not authorized the sale of any of XDP's parts, and has not tested or approved any of XDP’s parts for use in genuine Cummins brand products.