partszen Fuel Pump Assembly for Kohler CH-Series Engines — 24 559 10-S Kit with Filter & Shut-Off Valve

The partszen 24 559 10-S is a complete aftermarket fuel pump assembly designed to replace Kohler OE pumps on multiple CH-series engines, supplying filtered fuel and a shut-off valve in one kit.

This replacement assembly bundles the pump, inline filter, shut-off valve and fuel line so you can restore reliable fuel delivery without sourcing multiple parts. It fits a wide range of Kohler part numbers and CH-series engines; the kit is intended as a direct-fit serviceable unit for small engines used in generators, pressure washers and lawn equipment. Observe orientation during installation to prevent leaks.

Which Kohler engines and part numbers will this partszen pump fit?

This kit is compatible with many Kohler CH-series models and several cross-reference part numbers. It covers the common OEM references so you can use it as a replacement for older or discontinued Kohler assemblies.

• Compatible Kohler models: CH18–CH25 series and CH620–CH752 variants (including CH730, CH740).
• Cross-reference part numbers: 24-393-12-S, 24-559-02-S, 24-559-05-S, 24-559-08-S, 24-559-10-S, 24-559-12-S, 24-757-34-S and equivalents.
• Also fits legacy numbers formatted without dashes: 2439312-S, 2455902-S, etc.

What comes in the partszen fuel pump kit and why each piece matters?

The kit contains the pump, an inline fuel filter, a fuel shut-off valve and a length of fuel line so you have a complete fuel delivery solution. Including these items simplifies repair and reduces the risk of downstream contamination or fuel drips after service.

• Fuel pump — delivers consistent fuel flow to the carburetor under normal operating conditions.
• Fuel filter — screens debris to protect carburetor jets and internal pump components.
• Shut-off valve — allows fuel isolation during storage or maintenance to prevent flooding.
• Fuel line — pre-cut length to match typical Kohler routing for an easier install.

How do I install the partszen 24 559 10-S without causing leaks?

Installation is straightforward if you follow orientation and seal advice. Make sure the pump inlet/outlet face the correct direction, tighten clamps to specified torque, and check fittings after a short run to confirm no seepage.

• Confirm pump orientation matches original unit; incorrect direction can cause fuel leakage.
• Use new clamps or firm clips and avoid overtightening plastic fittings.
• Prime the system and inspect all joints for a few minutes at idle before full use.

Will this partszen replacement affect engine performance or warranty?

As an aftermarket replacement, the pump is built to match the fit and function of Kohler OE parts but it is not an OEM product. When installed correctly it restores normal fuel delivery; check your equipment warranty and local regulations about third-party parts before installing.

• Designed as a direct-fit replacement to restore original fuel flow characteristics.
• Not an OEM Kohler part; confirm warranty terms if that is a concern.
• Inspect and clean surrounding components during replacement for best results.

Who is this for: The partszen 24 559 10-S fuel pump kit is aimed at DIY mechanics, small-engine repair shops and owners of Kohler-powered equipment who need a one-package replacement to get generators, pressure washers, mowers and other CH-series engines back in service. It’s particularly useful when you need filter, valve and hose included to complete a repair in a single visit.