Ensure your pressure washer pump runs at full capacity with this 9.802‑603.0 Valve Kit. This OEM-grade rebuild kit includes six essential check valves—three inlet and three discharge—plus all necessary O-rings for valve and manifold bolts. Designed for brands like Landa, Karcher, Hotsy, and Legacy, it’s the go-to kit for repairing or maintaining high-pressure pump systems.

What’s Inside

• 6 Check Valves: 3 inlet and 3 discharge

• Valve O-rings: Seals for each valve

• Manifold Bolt O-rings: Replacement seals for mounting hardware

Specifications

• Part Number: 9.802‑603.0

• Compatible Brands: Landa, Karcher, Hotsy, Legacy high-pressure pumps

• Purpose: Replaces worn or damaged check valves to restore pump performance

• Recommended Use: Replace during pump rebuilds or when seals are serviced