942-04125 & 942-04124 Mower Blade Set Compatible with 46" Cut Deck Cub Ca-det i1046 LT1045 LT1046 LTX2146 LT1800 Toro MTD Troy Bilt Lawn Mower, Replace 742-04124 742-04125,3 Pack

What It Is

This is a 3-pack of aftermarket mower blades (models 942-04125 and 942-04124) designed for 46-inch cutting decks on select Cub Cadet, Toro, MTD, and Troy-Bilt lawn tractors. It replaces OEM part numbers 742-04124 and 742-04125, and is suitable for medium-duty residential mowing on standard turf.

Fitment & Compatibility

Before buying, verify these three things:

• Deck size: This set fits only 46-inch decks. Measure your deck width if unsure.
• Model check: Confirmed for Cub Cadet i1046, LT1045, LT1046, LTX2146, LT1800; Toro models with 46" decks; MTD and Troy-Bilt tractors using the same spindle pattern. Not universal—cross-reference your model with the 742-04124/742-04125 OEM numbers.
• Measurements: Each blade is approximately 20.5 inches long, with a 5-point star center hole (1-inch diameter) and 0.25-inch thickness. Measure your old blade’s length, hole shape, and thickness to ensure match. Aftermarket blades may vary slightly in balance or steel quality vs. OEM.

Key Things to Know

• Quality vs. OEM: These are budget aftermarket blades. They cut adequately for regular grass but may dull faster or chip on rough terrain compared to factory Toro or Cub Cadet blades. Check for uneven balance out of the box.
• Installation: Requires basic tools (socket wrench, torque wrench recommended). Tighten blade bolts to 70–90 ft-lbs. Always disconnect spark plug first.
• Common gotcha: The 3-pack includes two standard blades and one mulching blade or a different profile—confirm the mix before buying if you need all identical blades. Some users report needing to ream the center hole slightly for a perfect fit on certain spindles.
• Warranty: No manufacturer warranty on aftermarket parts. If you hit a rock or stump, replace immediately—bent blades cause vibration and spindle damage.

Should You Buy It

Buy this set if you have a compatible 46-inch deck tractor, need a low-cost blade replacement for routine mowing, and are comfortable with minor fit adjustments. Skip it if you mow heavy, wet grass or rocky ground—spend more on OEM or heat-treated blades for durability and balance.