Carburetor 12853117-S Air Filter 1208310-S Replacement for Kohler CV490 CV491 CV492 CV493

What It Is

This is an aftermarket air filter and carburetor replacement kit (part numbers 12853117-S and 1208310-S) designed for Kohler CV490, CV491, CV492, and CV493 series engines. It is used on residential and light-commercial lawn tractors, zero-turn mowers, and other small engine equipment.

Fitment & Compatibility

Before buying, confirm your engine model is one of the CV490–CV493 series (check the engine shroud or sticker). This kit replaces OEM Kohler parts 12853117-S (air filter) and 1208310-S (carburetor). It is not compatible with CV494 or CV495 engines or non-Kohler brands. Measure the carburetor mounting bolt spacing (typically 2.5 inches center-to-center) and the air filter dimensions (roughly 6.5 x 4 inches) to match your existing setup. If your mower uses a different carburetor gasket or fuel line diameter (commonly 1/4-inch), you may need separate parts.

Key Things to Know

• Quality variance: Aftermarket carburetors can have inconsistent jetting or float adjustments. Expect to clean or adjust the carburetor out of the box for best performance.
• Installation difficulty: Moderate—requires removing the old carburetor, swapping gaskets, and routing fuel lines. Have a small screwdriver, socket set, and carburetor cleaner on hand.
• Common gotcha: The included air filter may be slightly thinner than OEM. Check that it seals tightly against the housing to avoid unfiltered air intake.
• Warranty note: This is a non-OEM part, so it does not carry Kohler’s warranty. Verify return policy before purchase.

Should You Buy It

If you have a Kohler CV490–CV493 engine and need a cost-effective fix for a clogged carburetor or dirty air filter, this kit is a solid budget option—just be prepared to spend 30–60 minutes on installation and minor tuning. It’s best for DIYers comfortable with basic engine work, not for those seeking plug-and-play OEM reliability.