Carburetor Carb Kit Compatible with Troy-Bilt TB30R 10.5 HP 344cc Riding Lawn Mower Replace 13CC26JD011

What It Is

This is a complete carburetor replacement kit for the Troy-Bilt TB30R riding mower with the 10.5 HP 344cc Briggs & Stratton engine. It includes the carburetor, gaskets, and fuel line components needed to fix stalling, hard starting, or rough idling caused by fuel system clogs or wear.

Fitment & Compatibility

• Exact match: Designed for Troy-Bilt TB30R with a 10.5 HP 344cc engine (Briggs & Stratton 31C707-0346-G5).
• OEM number: Replaces 13CC26JD011. Verify your existing carburetor part number matches.
• What to check: Measure your carburetor mounting bolt spacing (2.5 inches center-to-center) and fuel inlet diameter (5/16 inch). Confirm your engine model number (stamped on the valve cover or blower housing) ends in 344cc.
• Not for: Other TB30R variants with different engine sizes (e.g., 420cc), or any non-Troy-Bilt brand mower without the same Briggs engine.

Key Things to Know

• Quality: Aftermarket, not OEM. Most users report good fit, but some note thin gaskets that may need replacement with OEM ones for a perfect seal.
• Installation: Moderate difficulty – you’ll need to remove the old carb, transfer the throttle/governor linkage, and adjust the idle mixture screw. Expect 30-60 minutes.
• Common gotcha: The included fuel line may be slightly shorter than stock. Have a 6-inch piece of 5/16-inch fuel line on hand as backup.
• Tuning required: After installation, you’ll likely need to adjust the idle speed screw for proper RPM (around 3400-3600 RPM on most Briggs engines).

Should You Buy It

If your TB30R mower is hard starting, surging, or running rich, this kit is a cost-effective fix. It’s best for DIY owners comfortable with basic engine work who want to avoid a $80+ OEM carb. Skip if you prefer plug-and-play OEM parts or need exact gasket quality for a commercial-use machine.