2 Pack Mower Ultra High-Lift Blade Replaces OEM 742-05177 742P05177 742P05528 Compatible with Cub Cadet MTD XT1-LT42 XT2-LX42 42 inch Deck Lawn Mower

What It Is

This is a 2-pack of ultra high-lift blades designed for 42-inch decks on select Cub Cadet and MTD lawn tractors. The high-lift profile creates stronger airflow to lift grass for a cleaner cut and better bagging performance, making it ideal for mulching or collecting leaves.

Fitment & Compatibility

Before buying, confirm your deck is exactly 42 inches (measured blade tip to tip). These replace OEM part numbers 742-05177, 742P05177, and 742P05528. Compatible models include Cub Cadet XT1-LT42, XT2-LX42, and similar MTD-built tractors with a 42-inch stamped deck. Also check your blade bolt size (typically 5/8-inch on these models) and center hole diameter—these blades have a 1-inch center hole with a 5-point star pattern. Measure your existing blade length (should be ~21 inches) and width to ensure match. Not for zero-turn or 46-inch+ decks.

Key Things to Buy

• Higher lift = more power draw – These blades require more engine power than standard blades. On underpowered engines (under 18 HP), you may notice bogging in tall, wet grass.
• Check spindle clearance – Ultra-high-lift blades have a pronounced upward curve. Ensure your deck’s blade spindle and housing allow full rotation without contact.
• Install with sharp edge facing the deck – The cutting edge should point toward the front of the mower. Tighten bolts to 70–90 ft-lbs; use a torque wrench to avoid stripping.
• Balance after sharpening – These blades are heavier than standard ones. Always re-balance after sharpening to prevent vibration and spindle wear.

Should You Buy It

Buy if you have a 42-inch Cub Cadet or MTD tractor and need superior grass lift for bagging or dealing with heavy leaf cover. Skip if your engine is under 18 HP or you only mow short, dry grass—standard blades will be more efficient and easier on the drivetrain.