CUB CADET 942-04053C 17.90" High-Lift Blade i1050 RZT50 LT1050 SLT1550 50" Decks

What It Is

The CUB CADET 942-04053C is a genuine OEM 17.90-inch high-lift blade designed for 50-inch cutting decks on select Cub Cadet zero-turn and lawn tractors. It’s built to increase airflow and suction for superior grass clipping discharge and bagging performance.

Fitment & Compatibility

Before buying, confirm your mower has a 50-inch deck and uses a 17.90-inch blade length (measured center hole to blade tip). This OEM part fits Cub Cadet models including the i1050, RZT50, LT1050, and SLT1550. It replaces OEM part numbers 942-04053, 742-04053, and 742-04053C. Check your current blade’s center hole diameter (typically 1-inch) and ensure your spindle pattern matches—this blade uses a standard 5-point star or oval hole. It will not fit 46-inch or 54-inch decks. For non-Cub Cadet brands, verify deck spindle compatibility.

Key Things to Know

• High-lift design improves bagging and side-discharge but may increase engine load slightly; avoid using in wet or heavy grass to prevent bogging.
• Installation is straightforward with a single bolt and washer—use a torque wrench set to 70-90 ft-lbs for safety.
• Check blade balance after sharpening; unbalanced blades cause vibration and spindle wear.
• OEM quality ensures exact fit and heat-treated steel—aftermarket blades may require modification or lack durability.

Should You Buy It

Buy this if you own a compatible Cub Cadet with a 50-inch deck and need reliable, high-lift blades for clean cuts and efficient bagging. It’s ideal for users who prioritize OEM fit and performance over cheaper aftermarket options.