3sets 30623 Seal Kit, Pump Washer Seals Kit Fits for Cat Pump 30 31 34 310 340 350 Model Frame Plung [Replaces Part Number] - 30623 Seal Kit, 17399 Plunger Retainer O-Rings, 14200 Seal Case O-Rings, 43307 High-Pressure Seals, 43305 Low-Pressure Seals. [Fitment] - compatible with for CAT Pump Pump 30, 31, 34, 35, 310, 310B, 310S, 310W, 340, 340S, 340B, 340W, 350, 350S, 350B, 350W Models, 5 Frame Plunger Pumps. [Premium Material] - Made of high quality Rubber, which is , wear-, and has good oil resistance. [Function] - Used to replace broken, damaged and worn seals and O-ring. seals help to create a leak-proof connection. Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you Colour: As Shown Material: Rubber + Paper Pad Package Contents: 3sets * 30623 Seal Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.