Over time, the spring inside the unloader valve can become damaged due to dirt or debris entering the system. A worn or contaminated spring can cause pressure issues, including reduced output or complete loss of pressure.

This listing is for a 5 pack of replacement springs.

If your machine has lost pressure, one common cause is a damaged or jammed spring in the unloader valve. Replacing the spring can help restore proper function and pressure.

To replace:
Remove the unloader outlet coupling where the spring is located inside. Swap out the old spring for a new one and refit into the unloader valve.

Compatible with the following machines:
KM3200P, KM3400P, KM3700P, KM3700PR, Warrior 3000P, Warrior 3400P, Warrior 3700P, KM3000DHI, KM3600DX, KM3600DXR.