Powtol 951-05149 Carburetor Compatible with LT4200 Craftsman T1000 T1200 R1000 Cub C-adet CC30 CC760ES MTD 4P90F 4P90HUA 4P90HUB 4P90HUC 4P90JUF 420CC Engine Parts

What It Is

This is an aftermarket carburetor designed to replace the OEM 951-05149 on MTD-built engines (4P90F, 4P90HUA, 4P90HUB, 4P90HUC, 4P90JUF) found in Craftsman LT4200, T1000, T1200, R1000, and Cub Cadet CC30, CC760ES mowers. It handles fuel metering and air/fuel mixing for 420cc single-cylinder engines.

Fitment & Compatibility

Before buying, verify your engine model number (stamped on the valve cover or blower housing) matches one of the 4P90 series codes above, not just the mower model. This carb fits 420cc engines only. Check your old carb’s gasket pattern—some MTD units use a different bolt spacing. You’ll also need to confirm the fuel line size (3/16” or 1/4”) and throttle/choke cable linkage matches your original setup. It’s not universal; do not buy for non-MTD engines or smaller 380cc/190cc engines.

Key Things to Know

• Quality variance: Aftermarket carb; some users report needing to clean out debris or adjust the float height before installation. Inspect it first.
• Installation difficulty: Moderate. You’ll need to remove the air filter housing, fuel line, and throttle cable. Watch for gasket alignment; a new gasket is included.
• Tuning required: Expect to adjust the idle mixture screw (if present) and throttle cable tension after install. The carb may be set lean from the factory.
• Common gotcha: The included fuel line may be too short or the wrong diameter—keep your old line as a backup. Also, verify the choke linkage arm orientation matches your mower.

Should You Buy It

If your 420cc MTD engine (Craftsman or Cub Cadet) has a clogged or failed OEM carb and you’re comfortable with basic engine tuning, this is a budget-friendly replacement. It’s not for non-MTD engines or those wanting a perfect drop-in fit without adjustment.