Sejaede Fuel Pump Kit for Kohler Command CH Engines — #2 Cylinder Replacement Kit with Pump, Fittings & Gaskets

The Sejaede Fuel Pump Kit is a complete replacement assembly designed to restore fuel delivery on Kohler Command CH-series small engines, supplying pump, fittings, gaskets and mounting hardware for an easy install.

If you’re maintaining a mower or light equipment powered by Kohler CH engines, this kit brings together the parts you need to replace the in-cylinder pulse fuel pump and its attachments. It’s built to fit a wide range of Kohler CH model numbers and replaces many original part references so you can swap components without hunting for multiple items. The kit includes the pump body, oil filter cap, O-ring, hose, fittings in several angles, clamps, screws and a retaining ring — everything necessary to re-establish reliable fuel flow for the #2 cylinder on compatible engines.

Which Kohler engines and part numbers does this kit replace?

This kit is made to match many Kohler Command CH family engines and supersedes numerous OE part numbers. It fits CH18–CH25 series and several CH6xx and ECH variants listed by model, covering common lawn mower and utility engine applications.

• Compatible models include CH18–CH25, CH620–CH752 and ECH630–ECH749 series.
• Replaces OE references such as 24-559-02-S, 24-393-12-S, 24-757-34-S and others.
• Intended for the #2 cylinder (oil filter side) fuel pump location.

What parts are included and why they matter?

The kit assembles the commonly failing components that affect fuel draw and sealing. You get both the pump and the peripheral fittings so you can correct leaks, clogged lines or worn seals in one service operation.

• Fuel pump body and valve cover O-ring to restore sealing integrity.
• Oil filter cap replacement and retaining ring for secure mounting.
• Fuel hose, straight, 45° and two 90° fittings plus clamps for flexible routing.
• Four mounting screws and a 1/8" plug to complete installation.

How do I troubleshoot if the pump doesn’t draw fuel after installation?

Pulse-style pumps rely on crankcase pressure pulses; therefore, first confirm the fuel path and pulse source are functional. Inspect hoses and filter for blockages and ensure the pulse line to the pump is intact and sealing against leaks to generate the necessary pulses.

• Check fuel hose for kinks, cracks or clogged pickup and clean or replace as needed.
• Verify the rubber pulse line is tight, undamaged and not leaking air.
• Confirm the fuel filter and pickup are free of debris and the pump’s O-ring seals correctly.

Are there any special fitment notes or pre-install requirements?

Before fitting, verify engine serial numbers and confirm the pump location is the #2 cylinder on the oil filter side. Engines with serial numbers below 252800017 may require a valve train kit to convert rocker arms for proper compatibility.

• Check your engine serial against compatibility notes before ordering.
• Older engines (below serial #252800017) may need valve train kit 24 755 66-S.
• Match OE numbers listed to ensure correct replacement parts for your engine.

Who is this for: This Sejaede Fuel Pump Kit is for DIY mechanics, professional small-engine technicians and lawn care professionals who service Kohler Command CH-series engines. It’s tailored to users who need a single, consolidated replacement set to restore fuel delivery at the #2 cylinder, minimize downtime and avoid sourcing multiple individual components.