The Solo Piston Pump Repair Kit is a genuine, factory‑engineered solution for reviving worn or leaking piston pump backpack sprayers. Designed to replace all critical internal sealing and pressure‑control components, this kit restores pumping efficiency, pressure consistency, and leak‑free performance. Featuring chemical‑resistant Viton® materials and a full set of precision‑fit O‑rings, valves, and springs, it’s the ideal maintenance upgrade for users who depend on their sprayer for professional‑grade results.
Includes a Viton® collar, valve plates, multiple O‑rings, a spring, and a seal plug for pressure‑regulating assemblies—everything needed for a full piston pump rebuild.
Designed specifically for Solo piston pump backpack sprayers: models 425, 425‑101, 425‑DELUXE, 435, and 473‑P.
Restores optimal pressure, pump action, and spray consistency by replacing worn seals and internal components affected by regular use or chemical exposure.
Viton® components resist damage from harsh chemicals, oils, and solvents, ensuring long‑lasting durability and improved sprayer lifespan.
Simple, user‑friendly installation with included instructions—remove old components, install replacements, and reassemble for restored performance.
Improves pressure retention, eliminates leaks, increases longevity, and ensures consistent spray patterns for professional‑quality application.
Ideal for restoring sprayers used for herbicides, pesticides, fertilizers, cleaning solutions, and other liquid applications requiring reliable pressure output.
Inspect seals and pump components regularly; replace at first signs of wear to prevent downtime and maintain peak sprayer efficiency.
The Solo Piston Pump Repair Kit is a genuine, factory‑engineered solution for reviving worn or leaking piston pump backpack sprayers. Designed to replace all critical internal sealing and pressure‑control components, this kit restores pumping efficiency, pressure consistency, and leak‑free performance. Featuring chemical‑resistant Viton® materials and a full set of precision‑fit O‑rings, valves, and springs, it’s the ideal maintenance upgrade for users who depend on their sprayer for professional‑grade results.
Includes a Viton® collar, valve plates, multiple O‑rings, a spring, and a seal plug for pressure‑regulating assemblies—everything needed for a full piston pump rebuild.
Designed specifically for Solo piston pump backpack sprayers: models 425, 425‑101, 425‑DELUXE, 435, and 473‑P.
Restores optimal pressure, pump action, and spray consistency by replacing worn seals and internal components affected by regular use or chemical exposure.
Viton® components resist damage from harsh chemicals, oils, and solvents, ensuring long‑lasting durability and improved sprayer lifespan.
Simple, user‑friendly installation with included instructions—remove old components, install replacements, and reassemble for restored performance.
Improves pressure retention, eliminates leaks, increases longevity, and ensures consistent spray patterns for professional‑quality application.
Ideal for restoring sprayers used for herbicides, pesticides, fertilizers, cleaning solutions, and other liquid applications requiring reliable pressure output.
Inspect seals and pump components regularly; replace at first signs of wear to prevent downtime and maintain peak sprayer efficiency.