Maxpower 561556B Blade Set for 42" Cut MTD, Cub Cadet, Troy-Bilt Replaces OEM No. 742-04308, 742-04312, 942-04308, 942-04312

What It Is

This is a set of three replacement blades for 42-inch cutting deck riding mowers, designed to fit MTD, Cub Cadet, and Troy-Bilt models. It’s a direct aftermarket alternative to OEM part numbers 742-04308, 742-04312, 942-04308, and 942-04312.

Fitment & Compatibility

• Deck size: Only for 42-inch cutting decks. Measure your deck width before buying—this set will not fit 46-inch or 54-inch decks.
• Brand/model: Fits most MTD, Cub Cadet, and Troy-Bilt riders with a 42-inch stamped or fabricated deck. Also compatible with some Yard Machines, Huskee, and Bolens models using the same OEM numbers.
• OEM cross-reference: Replaces 742-04308, 742-04312, 942-04308, 942-04312. Check your current blade’s part number or look up your mower’s model number online to confirm.
• Measurements: Each blade is approximately 21 inches long, with a 1-inch center hole and a 5-point star drive pattern. Verify your spindle’s drive pattern—some older decks use a different hole shape.
• Aftermarket note: Not an OEM Cub Cadet blade, but made to OEM specs. Fitment is generally reliable, but tolerances can vary slightly on older or welded decks.

Key Things to Know

• Quality: Made from heat-treated steel with a hardened edge. Sharp out of the box—handle carefully. Durability is good for residential use but may dull faster than OEM on rocky or sandy soil.
• Installation difficulty: Easy if you have a socket set and a blade removal tool. The 5-point star pattern fits standard spindles, but you’ll need to torque bolts to 70-80 ft-lbs. Use thread locker if your mower vibrates heavily.
• Balance: Blades come pre-balanced, but always check with a blade balancer before installing. An unbalanced blade causes vibration, poor cut quality, and spindle wear.
• Common gotcha: The set includes three blades, but some 42-inch decks use two blades (e.g., older MTD models). Verify your deck’s blade count—if you have a two-blade deck, this set will leave you with a spare.

Should You Buy It

If you need a budget-friendly, direct replacement for a 42-inch MTD, Cub Cadet, or Troy-Bilt riding mower with three blades, this set is a solid choice. It’s not for commercial use or decks with odd spindle patterns, but for regular residential mowing, the price and ratings make it hard to beat.