11A-B2AQ723 TB 160 Carburetor for Troy Bilt TB160 Model 11AB2AQ723 (2019-2023) Walk-Behind Lawn Mower with Air Filter kit

What It Is

This is a complete carburetor replacement kit (with air filter) designed for the Troy-Bilt TB160 walk-behind mower, specifically the Model 11AB2AQ723 produced from 2019 through 2023. It handles the fuel-air mixture and delivers it to the engine for combustion.

Fitment & Compatibility

• Exact model match: Only for Troy-Bilt TB160 with model number 11AB2AQ723 (check the sticker under the seat or on the frame near the rear wheel).
• Year range: 2019–2023 only. Earlier or later TB160 variants (e.g., 11A-B2AQ724) may use a different carburetor.
• Engine type: Fits the Briggs & Stratton 158cc engine used in this specific model.
• What to verify: Before buying, confirm your mower’s deck size is 22 inches (the standard for this model) and that the carburetor mounting bolt spacing matches (2.5 inches center-to-center). The kit includes an air filter, but check that the filter housing shape matches your mower (rectangular, not round).
• OEM vs aftermarket: This is a third-party replacement, not an OEM Troy-Bilt part. It should fit, but tolerances may vary slightly.

Key Things to Know

• Installation difficulty: Moderate. You’ll need a screwdriver, socket set, and maybe a small pry tool. Expect 30–60 minutes if you’re handy.
• Common gotcha: The included air filter may be slightly thicker than the original—trim it with scissors if it doesn’t seat flush in the housing.
• Quality: Most users report it works fine out of the box, but a few note the gaskets are thinner than OEM. Use RTV sealant on the intake gasket to prevent air leaks.
• Tuning: The carburetor comes pre-set, but you may need to adjust the idle screw (turn clockwise to raise idle) if the mower stalls after installation.

Should You Buy It

Buy this if your TB160 (2019–2023) has hard starting, surging, or fuel leaks and you want a budget-friendly fix without replacing the entire engine. It’s a solid value for the price, but if you prefer guaranteed OEM fit or have a different model year, look for a genuine Troy-Bilt carburetor instead.