42 Inch Decks Blades Fits for Cub Cadet RZT-L42 KH RZT-L42 Troy Bilt Super Bronco 42 Craftsman T1000 LT1500 Replaces OEM 942-04308A 942-04312 742-04312 (High Lift) 2 Pack

What It Is

This is a 2-pack of 42-inch high-lift mower blades designed for select Cub Cadet, Troy-Bilt, and Craftsman lawn tractors. They replace OEM part numbers 942-04308A, 942-04312, and 742-04312, and are intended for cutting grass and improving bagging performance on 42-inch decks.

Fitment & Compatibility

Before buying, confirm your mower deck is exactly 42 inches (measured blade tip to tip). These blades fit:

• Cub Cadet RZT-L42 and RZT-L42 KH (zero-turn riders)
• Troy-Bilt Super Bronco 42
• Craftsman T1000, LT1500, and other 42-inch deck models using the OEM numbers listed.

Check your current blade’s center hole diameter (typically 1-inch or 7/8-inch) and overall length. Measure your existing blade to ensure it matches 42 inches total. Also verify the blade’s thickness and offset—these are high-lift blades, so they have a steeper curve than standard blades. If your deck uses a different spindle or mounting pattern, these won’t fit.

Key Things to Know

• High-lift design improves grass discharge and bagging, but may require more engine power and can wear faster in sandy or dusty conditions.
• Installation difficulty: Moderate. You’ll need a socket wrench, a block of wood to jam the blade, and basic mechanical skill. Always disconnect the spark plug first.
• Common gotcha: The blade bolt torque is critical—typically 40-60 ft-lbs. Over-tightening can strip the spindle; under-tightening can cause blade loss.
• Aftermarket vs OEM: These are aftermarket replacements. They’re cheaper than OEM Cub Cadet blades, but quality and balance can vary. Check for consistent thickness and sharpness out of the box.

Should You Buy It

If you own a compatible 42-inch Cub Cadet, Troy-Bilt, or Craftsman tractor and need a cost-effective 2-pack for regular mowing and bagging, these are a solid choice. They’re best for homeowners who don’t mind basic DIY installation and want improved grass lift over standard blades. Skip them if you have a different deck size or need OEM-specific fitment for warranty reasons.