On/Off Repair Kit 303639 Good Price WaterJet Pump Parts Supplier

The On/Off Repair Kit 303639 is a precision-engineered service kit designed for rebuilding and maintaining the on/off valve assembly of high-pressure Waterjet Cutting Heads. This kit restores smooth, reliable operation of the valve that controls the start and stop of the waterjet stream—ensuring precise cutting control, leak-free sealing, and long-term durability under continuous high-pressure use.

The 303639 repair kit includes all critical replacement components—such as seals, O-rings, seats, springs, and valve tips—manufactured to OEM-grade tolerances using high-strength stainless steel and premium elastomers. Each part is engineered to withstand extreme pressures up to 60,000 psi (4,100 bar), maintaining consistent performance even in demanding abrasive waterjet applications.

Fully compatible with leading waterjet brands including KMT, FLOW, OMAX, WSI, and BFT, the On/Off Repair Kit 303639 is ideal for routine maintenance, leak repair, or valve performance restoration on a variety of cutting head configurations.