MOTOALL Carburetor Huayi Carb w/Gasket Fit for Cub Cadet Troy Bilt MTD 951-14423 5X65RU

What It Is

This is an aftermarket carburetor assembly from MOTOALL designed to replace the Huayi carb on select Cub Cadet, Troy-Bilt, and MTD walk-behind mowers. It includes the necessary gaskets and is intended for engines like the 5X65RU or similar models using OEM part 951-14423.

Fitment & Compatibility

Check these before buying:

• Engine model: Fits engines with Huayi carburetors, commonly on Cub Cadet SC 300, SC 300 HW, and Troy-Bilt TB230, TB240 models. Verify your engine’s model number (e.g., 5X65RU) on the valve cover or shroud.
• OEM part number: Replaces 951-14423. Cross-reference your old carb’s number—if it’s different, this may not fit.
• Physical dimensions: Measure mounting bolt spacing (typically 2.5 inches center-to-center) and carb throat diameter (usually 0.75 inches). Mismatches mean it won’t seal or bolt up.
• Deck size irrelevant: This part is for the engine, not the deck. Focus on engine specs, not mower width.
• Aftermarket note: Not an OEM Cub Cadet part—quality may vary, but it’s a direct replacement for the listed applications.

Key Things to Know

• Installation difficulty: Moderate. You’ll need basic tools (screwdrivers, pliers) and about 30-45 minutes. Clean the intake manifold thoroughly before mounting.
• Common gotcha: The included gaskets may be thin—use a dab of gasket sealer on the intake side to prevent air leaks. Also, check the float bowl for debris from shipping.
• Adjustment required: You may need to tweak the idle mixture screw (typically 1.5 turns out from lightly seated) after installation for smooth running.
• Quality variance: Some users report needing to clean the carb out of the box due to machining debris. Expect it to work, but don’t assume plug-and-play perfection.

Should You Buy It

If your Cub Cadet or Troy-Bilt mower’s carb is clogged or damaged and you want a low-cost fix, this is a solid option—just be ready to spend an hour installing and potentially adjusting it. It’s not for those wanting OEM precision or zero fuss, but for the price, it beats buying a new mower. Skip it if your engine model isn’t listed or if you’re not comfortable with basic carb tuning.