Carburetor for Toro Recycler Model 20370 149cc Lawn Mower Kohler 6.75 Motor

What It Is

This is a complete replacement carburetor (with gaskets) for the Toro Recycler 20370 lawn mower, specifically designed for the 149cc Kohler Courage 6.75 ft-lb engine. It controls the air-fuel mixture entering the engine, restoring starting, idling, and cutting performance when the original carb clogs or fails.

Fitment & Compatibility

• Model match: Fits Toro Recycler model 20370 – verify your mower’s model number on the sticker under the rear flap or on the frame.
• Engine spec: Only for the Kohler 6.75 ft-lb, 149cc Courage engine (not for Briggs & Stratton or other Kohler variants).
• Deck size: Compatible with 21” and 22” decks on this model – deck size alone doesn’t determine fit.
• OEM vs aftermarket: This is an aftermarket replacement (not genuine Toro/Kohler). Gaskets are included, but quality of the float, needle, and jets can vary.
• Measurements: The carburetor mounting flange, intake bore, and bowl size should match the original. No special tools needed for measurement – visual comparison is sufficient.
• What to check: Remove your old carb and compare the gasket shape, bolt pattern, and fuel inlet orientation. If it’s identical, it will bolt on.

Key Things to Know

• Quality variance: Aftermarket carbs often have slightly different jetting or float settings. Expect to adjust the idle mixture screw (if adjustable) after installation.
• Installation difficulty: Moderate. You’ll need to remove the air filter cover, fuel line, and two mounting nuts. Clean the intake manifold gasket surface thoroughly before installing.
• Common gotcha: The included gaskets may be thinner than OEM. Use a small amount of gasket sealer on the intake side to prevent air leaks.
• Fuel system prep: If the old carb clogged, your fuel tank and line likely have debris. Clean or replace the fuel filter (if equipped) and drain old gas before installing the new carb.

Should You Buy It

This is a solid budget fix if you’re comfortable with basic small engine work and don’t mind a little tuning. It’s ideal for a mower that won’t start or runs poorly due to a gummed-up original carb, but avoid it if you want OEM reliability or need a drop-in replacement with zero adjustment. For the price, it’s worth trying before buying a $50+ OEM carb.