759-3830 42" High Lift Toothed Blades for Cub Cadet LT1042 LT2042 Z42 LT2180 LT1018 MTD Z16 Z165 42 Inch Deck Lawn Mower, Replaces 742-04101 742-3033 759-04081 490-110-C129 OCC-742-04101, 2 Pack

What It Is

This is a 2-pack of 42-inch high-lift toothed blades designed for aggressive cutting and improved grass discharge on Cub Cadet, MTD, and select Troy-Bilt lawn tractors with a 42-inch deck. Best for thick, tall, or damp grass where standard blades clog or leave a poor cut.

Fitment & Compatibility

• Deck size: Fits only 42-inch cutting decks. Measure your deck before ordering.
• Model match: Fits Cub Cadet LT1042, LT2042, Z42, LT2180, LT1018; MTD Z16, Z165; also compatible with Troy-Bilt and Yard-Man models using the same deck.
• OEM numbers: Replaces Cub Cadet/MTD part numbers 742-04101, 742-3033, 759-04081, 490-110-C129, OCC-742-04101. Cross-check your old blade’s part number.
• Measurements: Blade length is 20.5 inches, center hole 0.75-inch round, with a 0.25-inch offset. Verify your spindle mount matches.
• Aftermarket: This is an aftermarket replacement, not OEM. Quality is good, but inspect fitment on the spindle before tightening.

Key Things to Know

• High-lift design: Creates stronger airflow for better bagging and side discharge, but increases engine load slightly. Not ideal for decks with poor grass flow (may leave clumps).
• Installation: Moderate difficulty—requires a socket wrench and blade removal tool or block of wood to hold the blade. Torque to 40-50 ft-lbs. Use thread locker if bolts are loose.
• Toothed edge: The serrated teeth help shred leaves and cut through thick grass, but they dull faster than straight blades if you hit rocks or dirt.
• Balance check: Always check blade balance after installation. Unbalanced blades cause vibration, wear spindles, and ruin cut quality.

Should You Buy It

Buy these if you need aggressive cutting for thick or wet grass, especially if you bag or side-discharge. They’re a solid aftermarket value for common Cub Cadet/MTD 42-inch decks. Skip them if you only mow a dry, manicured lawn—standard blades will be quieter and last longer.