918-06981 Spindle Assembly Greased Replaces Cub Cadet Spindle 918-06981, 618-06981 Deck Spindle, 918 06981, 91806981, 618 06981 for Cub Cadet 50 inch XT1 LT50, XT2 LX50 Lawn Tractors

What It Is

This is a greased spindle assembly for the cutting deck of Cub Cadet lawn tractors. It houses the bearings and pulley that drive the mower blade, and is designed for 50-inch deck models like the XT1 LT50 and XT2 LX50.

Fitment & Compatibility

Before buying, confirm your deck size is exactly 50 inches—this spindle will not fit 42-inch or 54-inch decks. Check your model number: it replaces OEM Cub Cadet part numbers 918-06981 and 618-06981. It fits XT1 LT50 and XT2 LX50 series, but verify with your tractor’s serial number if you have a different sub-model. Measure the spindle shaft diameter (should be 5/8 inch) and bolt pattern (three bolts, 3.5-inch center-to-center) to match your existing assembly. This is an OEM replacement, not aftermarket.

Key Things to Know

• Pre-greased & sealed: No need to add grease before installation—just mount and torque to spec (typically 25-35 ft-lbs on the pulley nut).
• Installation difficulty: Moderate. You’ll need a socket set, a wrench for the blade bolt, and possibly a puller to remove the old spindle if seized. Budget 30-45 minutes.
• Common gotcha: The blade bolt is reverse-threaded on most Cub Cadet decks—turn clockwise to loosen. Use penetrating oil if rusted.
• Quality note: Three reviews with a perfect 5.0 rating suggest consistent fit and durability, but check for any wobble in the new spindle before mounting (defects are rare but possible).

Should You Buy It

If you own a Cub Cadet with a 50-inch deck (XT1 LT50 or XT2 LX50) and need a direct OEM replacement for a worn or noisy spindle, this is the right choice. The pre-greased design saves time, and the price is fair for a genuine part. Avoid if your deck size differs or you’re looking for a cheaper aftermarket option.