50" Deck 618-05016 Spindle Rebuild Kit for Cub Cadet/for MTD SLTX1050 LTX1050KH LTX1050VT, Include 3 Spindles 918-05016, 3 Blades 742-04053, 2 Idlers 753-08171, 1 162" Belt 754-04240

What It Is

This is a complete spindle rebuild kit for 50-inch decks on select Cub Cadet and MTD lawn tractors, including all three spindles, three blades, two idler pulleys, and a 162-inch drive belt. It’s designed for restoring cutting performance and driveline reliability on models like the SLTX1050, LTX1050KH, and LTX1050VT.

Fitment & Compatibility

Before buying, confirm your deck measures exactly 50 inches and your mower is a Cub Cadet or MTD with a stamped steel deck (not fabricated). This kit replaces OEM part numbers 918-05016 (spindles), 742-04053 (blades), 753-08171 (idlers), and 754-04240 (belt). Check your existing spindle housing bolt pattern—these fit standard 4-bolt round housings. Also verify your blade spindle shaft diameter (typically 1-inch) and blade length (18 inches, with a 5/8-inch center hole). Not compatible with zero-turn or older MTD models pre-2000.

Key Things to Know

• Quality: Spindles are aftermarket with sealed bearings; blades are medium-duty (not high-lift). Idlers and belt are OEM-equivalent. Read reviews noting occasional bearing noise after a season.
• Installation difficulty: Moderate. You’ll need a socket set, torque wrench (spindle bolts to 45-50 ft-lbs), and a jack to lift the deck. Expect 1-2 hours.
• Common gotchas: The belt length (162 inches) is critical—measure your old belt before discarding. If your deck uses a spring-loaded idler, check spring tension. Blades may need balancing; aftermarket blades sometimes have slight weight variance.
• Value: Priced at $89, this kit saves ~$40 vs. buying parts individually, but verify all components are present (some buyers report missing idlers).

Should You Buy It

Buy this kit if your 50-inch Cub Cadet/MTD is experiencing wobbling blades, vibrating spindles, or belt slipping, and you want a one-stop refresh without sourcing each part separately. It’s a solid value for DIYers comfortable with basic deck disassembly, but skip it if you need high-lift blades for thick grass or prefer OEM spindles for heavy commercial use.