618-06976 918-06976 Spindle Assembly, Fit for 42 inch Deck Cub Cadet MTD XT1 LT42 XT2 LX42 XT1-LT42 XT2-LX42 KH KW CYT4220 CY4220SE for Craftsman T8000, Replace 618-06976 918-06976 2 Pack

What It Is

This is a replacement spindle assembly for 42-inch decks on Cub Cadet, MTD, and Craftsman lawn tractors. It drives the mower blade and houses the bearings that allow the blade to spin freely. Designed for mid-duty residential use with a 42-inch cutting deck.

Fitment & Compatibility

• Deck Size: Only for 42-inch decks. Will not fit 46-inch or 50-inch decks.
• Models: Cub Cadet XT1 LT42, XT2 LX42, XT1-LT42, XT2-LX42, and Craftsman T8000. Also fits Cub Cadet KH, KW, CYT4220, CY4220SE.
• OEM Cross-Reference: Replaces OEM part numbers 618-06976 and 918-06976. Aftermarket, not genuine Cub Cadet.
• Physical Check: Measure the spindle shaft diameter (typically 5/8 inch), bolt pattern (3 holes on 3-inch center), and overall height (approx. 4.5 inches) to confirm deck compatibility.
• Mounting Hardware: Verify your deck uses 3/8-inch or 5/16-inch bolts; this assembly does not include hardware.

Key Things to Know

• Quality: Rated 4.6/5 from 31 reviews. Users report it’s a solid aftermarket alternative to OEM, but bearing life may be shorter than genuine Cub Cadet parts in heavy use.
• Installation: Moderate difficulty. Requires removing the deck, belt, and blade. A puller may be needed to separate the old spindle from the deck. No special tools beyond standard sockets and a torque wrench.
• Common Gotcha: The spindle pulley is pre-installed, but the blade bolt is not included. Reuse your original or buy a new one—torque to 40-50 ft-lbs.
• Pack Size: Sold as a 2-pack, so you get two spindles. If only one is bad, you’ll have a spare.

Should You Buy It

If you own a 42-inch Cub Cadet XT1/XT2 or Craftsman T8000 and need a budget-friendly, drop-in replacement, this 2-pack is a good value. It’s best for residential mowing where occasional spindle failure is acceptable. For heavy commercial use or longer bearing life, consider OEM.