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This 18mm Ceramic Piston Sleeve Kit 9.803-935.0 includes one ceramic piston sleeve, one plunger nut, one copper spacer, one o-ring and one teflon spacer.
A ceramic plunger sleeve can become damaged and require replacement for a variety of reasons; the most common being that the pump has been left running in bypass for an extended period of time, allowing the water within the brass pump manifold (pump head) to heat up, in turn allowing the ceramic piston sleeve to become hot. When the trigger gun is pulled, cold water is forced into the pump head, making contact with the heated ceramic piston, which causes it to crack or shatter. This type of damage must be repaired immediately, or further damage may result, both to the Hotsy high pressure pump as well as other pressure washer components. Broken ceramic piston sleeves can damage such pressure washer parts as an unloader (pressure regulator) high pressure hose, as well as causing a clogged spray tip nozzle.
For use on Hotsy, Landa, Karcher and Legacy Pump models shown below:
HOTSY: HC340R, HD3025, HD4020, HE2020S, HE2825S
LANDA: LE-2020S, LE-2825S, LD-3025, LD-4020
KARCHER: KE2020S, KE2020S.1, KE2825S, KE2825S.1, KD3025, KD3025.1, KD4020, KD4020.1
LEGACY: GD3025, GD4020.1, GE2020S.1, GE2825S.1
REPLACES PART NUMBERS: 70-261405, 753041, 753107, AND 98039350
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