Kärcher 2.884-512.0 OEM Pump Valve Kit – Set of 3 Complete Valves

Genuine Kärcher replacement valve kit for select commercial hot- and cold-water pressure-washer pumps. This factory kit contains three complete pump valves and replaces several discontinued Kärcher valve part numbers, including 4.580-329.0.

Supersedes these Kärcher numbers

Kärcher 2.884-512.0 is the current replacement kit for:

• 2.884-918.0
• 4.580-186.0
• 4.580-295.0
• 4.580-329.0

Reported pressure-washer applications

Published parts references show this valve set in select versions of the following Kärcher machines:

Why replace pump valves?

Worn, contaminated, or sticking inlet and discharge valves can contribute to pressure-pump symptoms such as:

• Low or inconsistent operating pressure
• Pulsation or pressure fluctuation
• Reduced water flow
• Difficulty priming after the water supply and inlet filter have been checked

These symptoms can also be caused by restricted water supply, clogged filters, air leaks, worn seals, nozzle problems, or an unloader malfunction. Diagnose the pump before ordering repair parts.

Installation notes

• Turn off the machine, disconnect electrical power or disable the engine, shut off the water supply, and fully relieve system pressure before service.
• Keep the valve bores and sealing surfaces clean during installation.
• Inspect related O-rings, seals, springs, valve seats, and pump oil as applicable.
• Install valves in the correct direction and torque components to the service-manual specification.
• Professional installation is recommended when pump service procedures are unfamiliar.

Brand and model names are used only to identify compatibility. Product appearance and packaging may change without notice. Always verify the required part number against the machine serial number and current manufacturer parts diagram before purchase.