6.7 Cummins Block Heater Plug (Core)

Part: 6.7 Cummins Block Heater Plug (Core)

Part Number: 3975628UC

Manufacturer: Cummins

Condition: Used

The 6.7 Cummins Block Heater Plug (Core), part number 3975628UC, is a key component designed to ensure reliable engine performance during cold weather. Specifically engineered for 5.9L and 6.7L Cummins engines, this block heater plug threads directly into the engine block—typically on the passenger side behind the oil filter—and works by maintaining a consistent engine temperature when the vehicle is not in use. This helps reduce the strain of cold starts, minimizes engine wear, and allows for smoother operation and quicker warm-up times in freezing conditions.

As a core replacement, this plug is ideal for those rebuilding or maintaining their Cummins-powered Dodge Ram 2500 or 3500 trucks from model years 1998.5 to 2021. While the heating cord is sold separately, this component is built to meet OEM specifications, ensuring durability, proper fit, and long-term reliability.

When it comes to protecting your investment and ensuring your diesel engine performs at its best in any climate, quality matters. Trust Choate Engineering Performance to provide premium components and expert guidance every step of the way. Contact us today to get your engine cold-weather ready with confidence.