Cat Seal Kit Fits Cat Pump Model 30 31 34 35 310 310S 310B 310W 340 34 30623 by | Jul 22, 2026Replace part number: 30623. This Repair Seal Kit perfectly fits for CAT Pump Pressure Washer Pump 30, 31, 34, 35, 310, 310B, 310S, 310W, 340, 340S, 340B, 340W, 350, 350S, 350B, 350W Models. 2PCS #17399 plunger retainer o-rings.
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