918-06977 Deck Spindle Assembly Fit for MTD, Fit for Cub Cadet 46 inch Deck XT1-LT46 XT2-LX46 KH KW FAB 918-06977A 618-06977 618-06977A 2 Pack

What It Is

This is a deck spindle assembly that drives the mower blades on select MTD and Cub Cadet lawn tractors with a 46-inch fabricated deck. Sold as a 2-pack, it’s a direct replacement for worn or failed spindles that cause blade wobble, vibration, or uneven cutting.

Fitment & Compatibility

Before buying, verify deck size and type – this fits 46-inch fabricated (FAB) decks only, not stamped steel decks. Compatible with Cub Cadet XT1-LT46, XT2-LX46 and similar MTD-built models with KH or KW engines. Cross-references OEM numbers: 918-06977, 918-06977A, 618-06977, 618-06977A. Also fits some Troy-Bilt, Craftsman, and Yard Machines with the same deck. Measure your existing spindle: overall height should be ~4.25 inches, mounting bolt pattern 3.5 inches center-to-center. If your deck has three spindles, you need two of these packs for a full replacement.

Key Things to Know

• Aftermarket quality varies – this is a non-OEM part; inspect bearings for smooth rotation and check housing for casting flaws before installation.
• Installation difficulty is moderate – you’ll need a socket set, wrench, and possibly a puller to remove the old spindle. Expect 30–60 minutes per spindle.
• Common gotcha: the pulley bolt is reverse-threaded on some models – turn clockwise to loosen. Also, use thread locker on the mounting bolts to prevent loosening from vibration.
• No grease fittings – these are sealed bearings; when they fail, replace the entire assembly. No maintenance possible.

Should You Buy It

If you have a 46-inch fabricated deck on an MTD or Cub Cadet tractor and need a budget-friendly 2-pack to replace worn spindles, this is a solid value. Not for commercial use or stamped decks, and not a perfect OEM match – but for DIY homeowners, it gets the job done at half the price of dealer parts.