ACEBRI Spindle Assembly fit for Cub Cadet for MTD for Troy-Bilt 618-06979 918-06979 for Stens 285-706 for Cub Cadet XT1-LT54 XT2-LX54 Mower Spindle 1 Pack

What It Is

This is a replacement spindle assembly for the cutting deck on select Cub Cadet, MTD, and Troy-Bilt lawn tractors and zero-turn mowers. It drives the blade and houses the bearings that allow the blade to spin freely.

Fitment & Compatibility

Before buying, confirm your mower’s deck size and model. This spindle fits 54-inch decks on Cub Cadet XT1-LT54 and XT2-LX54 models, plus other MTD/Troy-Bilt tractors with a 54-inch fabricated deck. Cross-reference your OEM part number: this replaces 618-06979 and 918-06979 (Cub Cadet/MTD) and Stens 285-706. Measure the spindle shaft diameter (typically 5/8-inch) and bolt pattern (three bolts, 2.25-inch center-to-center). Not compatible with 42-inch or 46-inch decks without verifying mounting dimensions.

Key Things to Know

• Build quality: Aftermarket part at a lower price than OEM; check that the bearing housing is cast iron (not stamped steel) for durability.
• Installation difficulty: Moderate. Requires removing the deck, unscrewing the old spindle, and transferring the blade and pulley. Use a torque wrench—blade bolts typically need 70-80 ft-lbs.
• Common gotcha: The pulley nut can be very tight; a breaker bar or impact wrench helps. Also, check that the replacement spindle’s bearing preload matches OEM specs—some aftermarket units loosen up quickly if not properly lubed.
• Pulley fit: Ensure your existing pulley fits the spindle shaft’s keyway and retaining bolt; not all aftermarket spindles accept the same pulley.

Should You Buy It

If you need a budget-friendly replacement for a 54-inch Cub Cadet or MTD deck spindle and you’re comfortable with a mid-level DIY install, this is a solid value at $28. It’s not for heavy commercial use—expect similar lifespan to OEM in residential conditions. Verify fitment carefully before ordering.