K5.85M PLUS EU (1.396-601.0). K5.91M EU (1.396-800.0). K5.91MD T250 EU (1.396-807.0). K502 MS EU (1.069-908.0). Original Part Number: 6.288-050.0. Alternative Part Number(s): 62880500. To find your model number - Pressure Washers should have a sticker with the information on.
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