14 853 68-S Carburetor Replaces for Kohler 14 853 55-S 14 853 90-S Fits Specific Model HD675 XT6.5 XT650 XT6.75 XT675 XTX675 for Toro 20371 20378 20171 for Husqvarna HU675AWD with Air Filter

What It Is

This is a complete carburetor assembly (including air filter) designed to replace Kohler OEM part numbers 14 853 55-S, 14 853 68-S, and 14 853 90-S. It fits specific Kohler Command engines (HD675, XT6.5, XT650, XT6.75, XT675, XTX675) used on Toro 20371, 20378, 20171, and Husqvarna HU675AWD walk-behind mowers.

Fitment & Compatibility

Before buying, confirm your engine model number (stamped on the valve cover or cooling shroud) matches one of the Kohler Command series listed above. This is an aftermarket part, not OEM Kohler—build quality and materials may differ. Check that your carburetor mounting bolt spacing matches (typically 2.5 inches center-to-center) and that your fuel line diameter is 1/4 inch. The included air filter may not match your original housing exactly; compare filter dimensions (approx. 2.5 x 1.5 inches) to your current one. This carb does not include a gasket—you may need to reuse or buy a separate intake gasket.

Key Things to Know

• Quality varies: Some users report needing to clean out manufacturing debris or adjust the float height before installation. Expect to do a quick inspection.
• Installation is moderate: You’ll need to remove the old carb, transfer the fuel line and linkage, and adjust the idle mixture screw (typically 1.5 turns out from lightly seated). A small screwdriver set is essential.
• Common gotcha: The included air filter may be too thick or thin for your housing—test fit before reassembling the cover. If it doesn’t seal, buy a separate OEM Kohler air filter.
• Return policy matters: Since aftermarket tolerances can be off, buy from a seller with a clear return policy. The 4.4-star rating suggests most units work, but failures happen.

Should You Buy It

If you need a budget-friendly replacement for a Kohler Command carburetor on a Toro or Husqvarna mower and are comfortable with basic carburetor tuning (adjusting idle mixture, checking float height), this is a solid value. It’s not for someone expecting plug-and-play OEM quality—expect to spend 20–30 minutes on fine-tuning. For a quick swap with no fuss, pay more for a genuine Kohler carb.