The 30821 Valve kit includes new valves for a plunger pump. It's used with CAT Pumps 310, 340, 350, and 5CP model pumps. All valves, springs, seats, plugs, and retainers are official CAT replacement parts.
The CAT Pumps 30821 Valve Kit contains OEM valves to service a 310, 340, 350, or 5CP pump. Regular valve replacement keeps your pump running safely and efficiently.
OEM replacement seals
Purchase your seals in a kit to save money and make ordering easier