CV15S Fuel Pump for Kohler CV460 CV14S 12 559 02-S CV125

If your small engine is running lean, sputtering at idle, or struggling under load, the fuel pump and filter are common maintenance items to check. This Pro Chaser kit supplies a replacement 12 559 02-S style fuel pump and a matching fuel filter designed for Kohler CV series overhead-valve engines. Before ordering, compare photos and mounting points against your existing carburetor since minor carburetor variations can require a different pump style.

How do I confirm this pump fits my Kohler engine?

Verify fitment by comparing part shape, mounting screws and inlet/outlet locations with your current pump. Measure and photograph both sides of your carburetor and the existing pump; Pro Chaser can assist if you send clear images. Check the engine model stamp (e.g., CV125, CV15, CV460) and cross-reference with the listed compatible models.

• Compatible with Kohler models: CV125, CV14, CV14S, CV15, CV15S, CV15ST, CV15T, CV16, CV16S, CV43, CV430, CV45, CV450, CV46, CV460, CV49
• Compare mounting hole positions and overall pump shape
• Contact seller with photos for fitment help

What comes in the Pro Chaser fuel pump kit and how is it installed?

The kit includes one 12 559 02-S style fuel pump and one replacement fuel filter. Installation is straightforward for anyone comfortable with small-engine maintenance: remove the old pump, transfer any linkages if needed, mount the new pump, and attach the filter and fuel line. Always work on a cool engine and relieve fuel pressure or drain the bowl to prevent spills.

• Kit contents: 1 fuel pump, 1 fuel filter
• Basic tools needed: screwdriver, pliers, possibly gasket sealant
• Recommended: replace filter simultaneously for clean fuel delivery

How will this replacement pump affect engine performance?

A properly matched fuel pump restores consistent fuel flow to the carburetor, which helps stable idling, smoother throttle response and reliable starting. It does not change engine timing or power output; rather, it helps the engine operate as designed by ensuring steady fuel supply. If performance issues persist after replacement, check the carburetor, air filter and spark plug next.

• Improves fuel delivery stability and idle quality
• Reduces vapor lock and fuel starvation under load
• Pairs with a fresh filter to prevent debris-related lean conditions

Who is this for: This Pro Chaser CV15S fuel pump kit is aimed at DIY small-engine owners, lawn and garden equipment technicians, and fleet maintainers who service Kohler CV-series engines. If you maintain mowers, generators, or other equipment with compatible Kohler engines and you suspect fuel delivery problems or you're performing preventative maintenance, this kit provides the pump and filter needed for a like-for-like replacement. If you’re unsure about fit, send clear photos of your existing carburetor and pump to confirm compatibility before purchase.