21442 Carburetor For Toro GTS 150cc Lawn Mower Parts With Air Filter & Cover Kit

What It Is

This is a complete carburetor replacement kit for Toro GTS 150cc engines, including the carburetor, air filter, and cover. It’s designed for push mowers and walk-behind mowers using the 150cc Toro GTS engine platform.

Fitment & Compatibility

Before buying, confirm your mower uses a Toro GTS 150cc engine (not the 160cc or 190cc). This kit fits models like Toro 20171, 20172, 20371, 20372, and 20373—check your mower’s model number under the seat or on the engine shroud. It replaces OEM part number 21442. The kit is aftermarket, not genuine Toro, so expect slight differences in gasket thickness or air filter fit. Measure your old carburetor mounting bolt spacing (typically 60mm center-to-center). Not compatible with Briggs & Stratton, Honda, or Kawasaki engines.

Key Things to Know

• Installation difficulty: Moderate. Requires removing the old carb, cleaning the intake port, and adjusting the idle screw. Plan 30–60 minutes.
• Quality note: The air filter element is noticeably thinner than OEM. Consider upgrading to a genuine Toro filter if you mow dusty or tall grass.
• Common gotcha: The included gaskets may not seal perfectly on older, warped intake manifolds. Use a thin layer of gasket sealant if you see fuel leaks after install.
• Fuel line: The kit doesn’t include a fuel line or primer bulb. If yours is cracked, order those separately.

Should You Buy It

This is a solid budget option if your Toro GTS 150cc mower is hard to start or runs rough, and you’re comfortable with basic engine work. It’s not for perfectionists—expect to tweak the idle and maybe replace the air filter with an OEM unit. For a quick, cheap fix on a weekend mower, it works fine.