Replaces 30821 - VALVE KIT - fits Cat Pump 310 340 350 Models, Made in Italy Introduce precision and reliability to your pump maintenance with this high-quality Valve Kit, designed to replace part number 30821., Made in Italy, this kit is composed of brand new, premium valves that ensure top performance and durability. Pressure Washer Pump Rebuild Kit 30821 Pressure Washer Check Valve Kit 310, 340, 350 3-Pack Cat Pump Three Valves per kit. Compatible with 310, 340, 350, and 5CP Cat Pumps models Kit Details: Brand new, high-quality valve kit made in Italy. Each kit includes three valves. Each kit includes 3 valves; note that 2 kits are required to service an entire pump. Overhaul kit CAT plunger pump 5CP2120, -40, -50, 310, 340 en 350... Catpumps kleppenset 30821 NBR - 310 340 350 5CP2120 5CP2140CS 5CP2150... DetailsCat Pumps Mounting Kit for 310, 311, 323, 350S, 390, 5CP Model PumpsBrand: Cat PumpsWorks With: 310, 311, 323, 350S, 357, 390, 5CP2120W-5CP2150W, 5CP3120/CSS, 5CP5120-5CP5140CSS, 5CP6120-5CP6190, 5CPQ6221-6251Kit includes: rails, key, pulley/hub, shaft protectorPlease refer to the parts list in your pump manual to ensure compatablility