In stock and ready to ship.
This 0.25-specification governor spring fits within the oil pump/governor assembly, regulating fuel delivery and engine speed control on Wacker Neuson equipment across several machine families including vibratory rammers, trash pumps, and hydronic surface heaters.
Located in the oil pump/governor assembly, the governor spring works as part of the mechanical speed-sensing system that balances centrifugal force against spring tension to maintain consistent engine RPM under varying load conditions. A worn or fatigued governor spring can result in engine hunting, erratic RPM fluctuation, or an inability to hold a steady governed speed, making periodic inspection during oil pump and governor servicing a sound practice.
This spring is sourced directly from Wacker Neuson and is manufactured to the original specification, including the 0.25 rate designation listed in the official parts catalog. It is compatible with the following Wacker Neuson models:
- DS70
- E1100
- HSH 350 / HSH350
- PT 2H / PT2H
- PT 3H / PT3H
Applicable machine families include the E1100 DG and Ground Heaters, HSH350 DG Surface Heater 50Hz, Hydronic Surface Heaters, Trash Pumps, and Vibratory Rammers. Always consult the appropriate service manual for governor adjustment procedures and torque specifications before performing governor assembly work.
Genuine Wacker Neuson OEM part, sold by an authorized dealer.
