Spindle Assembly for Cub Cadet MTD 918-04822A 918-04822B 618-04822 918-04889 30-8001 14328 82-058 Lawn Mower Deck Fit Most 42in and 30in Mini Riders with Pulley Tapped Bolt Zerk Fitting

What It Is

This spindle assembly is the rotating hub that drives a lawn mower blade. It’s designed for Cub Cadet and MTD 42-inch and 30-inch mini rider decks, replacing worn or damaged spindles that cause blade wobble, vibration, or uneven cutting.

Fitment & Compatibility

• OEM cross-references: 918-04822A, 918-04822B, 618-04822, 918-04889, 30-8001, 14328, 82-058. Also fits MTD, Troy-Bilt, and Yard-Man models using the same spindle.
• Deck size: Works on most 42-inch and 30-inch mini rider decks (check your deck model—e.g., 42A, 42B, 30-inch series).
• What to measure: Verify the spindle shaft diameter (typically 1 inch) and overall length. Measure the distance from mounting base to blade mounting surface. Compare to your old spindle.
• Pulley included? Yes—this assembly comes with a pulley pre-installed. No separate pulley needed.
• Bolt pattern: Uses a tapped bolt and has a Zerk fitting for grease. Confirm your deck’s mounting holes match (usually 4-bolt pattern, 3-inch center spacing).

Key Things to Know

• Quality: Solid aftermarket replacement. The Zerk fitting allows regular greasing, extending life—many OEM spindles lack this.
• Installation difficulty: Moderate. You’ll need a wrench set, a jack or blocks to lift the deck, and a blade removal tool. Expect 30–60 minutes per spindle.
• Common gotcha: The tapped bolt can be over-tightened—use a torque wrench (specs: ~30–40 ft-lbs). Stripping the bolt hole is a frequent mistake.
• Check blade orientation: The spindle has a specific rotation direction. Install so the blade’s cutting edge faces the correct way (usually clockwise when viewed from above).

Should You Buy It

Buy this if you have a Cub Cadet or MTD mini rider with a 42-inch or 30-inch deck and need a reliable, greasable replacement spindle at a fair price. It’s a solid upgrade over OEM for the Zerk fitting alone, and the included pulley saves time. Skip it if you need a spindle for a zero-turn or a different deck size—measure first.