OEM-spec Part No. 3009383 Governor Plunger is a universal replacement component designed for a wide range of Cummins diesel engine series. Precision-machined from high-grade, hardened steel with a superfinished surface for minimal friction, it delivers precise fuel control, smooth engine speed regulation and reliable performance across varying load conditions. The plunger is built to strict OEM tolerances, ensuring a perfect fit with governor housings and long service life.