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      Karcher kb4040 are these the piston seals that go in the aluminium casing

      3, off seals one for each piston

      By Steve rowat - Bristol - 19 December 2015

      Answer this Question (1 Answer)

      • Chris from eSpares
        Chris at eSpares says...

        The correct seals are Stock Number: ES538225

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      Pressure Washer Grooved Piston Ring Stock Number: ES538339

      Main product image View full product details

      Genuine spare part for select models of Karcher pressure washers

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