Pro Chaser CH20S Fuel Pump for Kohler Engines — Direct-Fit Replacement with Inline Filter

The Pro Chaser CH20S Fuel Pump is a direct-fit replacement pump and filter kit designed to restore reliable fuel delivery for compatible Kohler small engines.

This aftermarket fuel pump assembly replaces worn or failing pumps on a range of Kohler single-cylinder engines, including SV735, CV730S, SV740, SV840, SV820 and CH23 models. It ships with a matched inline fuel filter to help keep debris out of the carburetor. Before ordering, verify that the pump's shape and mounting match your current carburetor, since Kohler used slight carb designs that can look similar but are not interchangeable.

How do I know this pump fits my Kohler engine?

Fit depends on the carburetor layout and mounting locations rather than only the engine model number. Compare the photos and examine your carburetor from both sides. If the pump housing, inlet/outlet positions and mounting screw holes match, the Pro Chaser CH20S pump should fit.

• Compare pump body shape and screw hole spacing to your existing part.
• Check inlet/outlet positions line up with your fuel lines.
• Send clear photos of both sides to confirm compatibility.

What comes in the package and what tools do I need?

The kit contains one fuel pump and one inline fuel filter—everything needed for a typical replacement. Installation usually requires basic hand tools and a clean work area to avoid contaminating the fuel system. Keep rags and a small container for fuel spillage on hand.

• Included: 1 x fuel pump, 1 x fuel filter.
• Common tools: screwdriver set, pliers, gasket sealant or replacement gaskets if needed.
• Work tips: drain fuel or clamp fuel line, and note hose routing before removal.

How will installing this pump affect engine performance?

A properly functioning fuel pump restores consistent fuel flow to the carburetor, which helps the engine start more reliably and run smoothly across loads. This replacement does not alter power output; it simply returns the fuel system to required operating condition when the original pump is failing.

• Reduces hard starting and fuel starvation under load.
• Helps eliminate sputtering and intermittent stalling caused by weak pumps.
• Maintains factory fuel flow when installed correctly.

How should I inspect and prepare my carburetor before installing the pump?

Inspect the carburetor for cracks, warped mounting surfaces, or broken fittings that could affect the seal and pump alignment. Clean the mating surface and replace any damaged gaskets to prevent leaks. If you’re unsure about model differences, photographing both sides and comparing to the product images reduces the risk of ordering the wrong part.

• Look for damaged mounting tabs or stripped screw holes.
• Clean surfaces and replace gaskets if brittle or torn.
• Verify hose diameters and routing to ensure proper connection.

Who is this for: The Pro Chaser CH20S Fuel Pump kit is ideal for DIY mechanics, small-engine repair shops, and owners of lawn mowers, generators or other outdoor power equipment that use Kohler SV and CV series engines listed above. It suits anyone who needs an affordable, ready-to-install replacement pump with a matching inline filter and who can verify fit by comparing the pump images to their existing carburetor. If you are uncertain about compatibility, contact the seller with clear photos of your carburetor from multiple angles and they can help confirm the correct match.