8TEN LawnRAZOR Blade for Cub Cadet LT 2042 2180 1018 Z42 42" Deck MTD Troy Bilt 742-3033 759-3830 (Mulching) 2 Pack

What It Is

The 8TEN LawnRAZOR Blade is a direct-replacement mulching blade designed for 42-inch cutting decks on select Cub Cadet, MTD, and Troy-Bilt lawn tractors. It replaces OEM part numbers 742-3033 and 759-3830, optimized for leaf shredding and fine grass clipping mulching.

Fitment & Compatibility

Before buying, confirm your deck size is exactly 42 inches—measure from blade tip to blade tip if unsure. Compatible models include Cub Cadet LT 2042, 2180, 1018, and Z42, plus many MTD and Troy-Bilt tractors using the same 42-inch deck. Check your existing blade’s part number: if it ends in 742-3033 or 759-3830, this set fits. Measure the center hole diameter (must be 1 inch) and overall blade length (should be 20.5 inches). Verify your deck’s spindle pattern—this blade uses a standard 5-point star center hole, not a round hole. If your deck uses a different mounting system (e.g., oval hole or offset pattern), this blade won’t work.

Key Things to Buy

• Quality vs OEM: These are aftermarket blades, typically made from heat-treated steel. They may be slightly thinner or lighter than OEM Cub Cadet blades, which can reduce durability but improve sharpness for mulching.
• Installation: Easy—remove the center bolt, replace the blade with the sharp edge facing the deck’s rotation direction (usually counterclockwise when viewed from above), and torque the bolt to 70–90 ft-lbs. Use a blade removal tool or block of wood to prevent spinning.
• Common Gotchas: These blades are designed for mulching only—they lack a high-lift wing, so they won’t bag or side-discharge well. If your deck has a baffle kit for mulching, ensure it’s installed for best results. Check blade balance after installation; unbalanced blades cause vibration and uneven cuts.
• Wear Indicator: No visual wear mark—replace when the cutting edge is rounded or nicked, typically every 25–50 hours of use depending on lawn conditions.

Should You Buy It

If you own a compatible Cub Cadet or MTD 42-inch deck tractor, primarily mulch leaves and grass, and want a budget-friendly alternative to OEM blades, this 2-pack offers decent value at $34.95. However, if you need high-lift blades for bagging or side-discharge, or have a different deck size, look elsewhere. The 4.2-star rating from 17 reviews suggests reliable performance for light-to-moderate mulching, but heavy-duty users may prefer OEM for longer life.