42 Inch Mower Deck Rebuild Kit Fit for Cub Cadet LTX1040 LTX1042 EZT L42 RZT 42 RZT L42 RZT S42 Parts Spindle 918-04822 Blade 742-04308 Idler 756-04129 Belt 754-04060

What It Is

This 42-inch mower deck rebuild kit includes the essential wear items—spindles, blade, idler pulley, and belt—to restore cutting performance on Cub Cadet LTX1040, LTX1042, and RZT 42 series lawn tractors. It’s designed for a full deck overhaul, not just a single part replacement.

Fitment & Compatibility

• Deck size: Fits only 42-inch stamped decks—measure your deck width to confirm.
• Models: Cub Cadet LTX1040, LTX1042, EZT L42, RZT 42, RZT L42, RZT S42. Also compatible with some MTD-built variants (check deck part number).
• OEM vs aftermarket: This is an aftermarket kit referencing OEM numbers 918-04822 (spindle), 742-04308 (blade), 756-04129 (idler), and 754-04060 (belt). Verify your original part numbers match.
• Measurement check: Blade length must be 42 inches (three-blade pattern) and spindle shaft diameter 5/8 inch. Belt length is 96.5 inches (Kevlar-reinforced).

Key Things to Know

• Quality: Spindles are pre-greased and sealed; blades are heat-treated steel. Some users report belt tension may need minor adjustment after install.
• Installation: Moderate difficulty—requires removing the deck, swapping spindles, pulley, and belt. Have a socket set, torque wrench, and penetrating oil for rusted bolts.
• Common gotcha: The idler pulley bracket may need replacing separately if worn—inspect before ordering.
• Kit completeness: Includes three spindles, one blade set, one idler pulley, and one belt. You may need additional hardware (lock washers, bolts) depending on deck condition.

Should You Buy It

Buy this kit if your Cub Cadet 42-inch deck has vibration, uneven cut, or belt slippage, and you want a single-purchase solution instead of sourcing parts individually. It’s a good value for DIY rebuilds on older tractors, but skip it if your spindles or pulley are still smooth—buy only the worn parts to save money.