8TEN Mower Spindle for MTD Cub Cadet 46 inch XT1-LT46 XT2-LX46 KH KW FAB 918-06977 918-06977A

What It Is

The 8TEN Mower Spindle is a replacement assembly for the blade drive system on select Cub Cadet and MTD zero-turn and lawn tractors. It’s designed for 46-inch fabricated decks (FAB) used on the XT1-LT46, XT2-LX46, and similar models, where the spindle houses the bearings and pulley that spin the cutting blade.

Fitment & Compatibility

Before buying, verify these three things:

• Deck size and type: This spindle fits only 46-inch fabricated (FAB) decks, not stamped steel decks. Check your deck’s stamped model number (e.g., 46FAB).
• OEM cross-reference: Replaces MTD/Cub Cadet part numbers 918-06977 and 918-06977A. If your spindle has a different number, measure the pulley bolt pattern (usually 3-bolt, 3-inch center-to-center) and spindle shaft diameter (typically 5/8-inch).
• Model list: Fits XT1-LT46, XT2-LX46, KH, KW, and FAB models, but also compatible with some MTD yard tractors and RZT models using the same 46-inch fabricated deck. Double-check your mower’s brand and model number, not just the deck size.

Key Things to Know

• Quality: 8TEN is a reputable aftermarket brand. Most users report it’s as durable as OEM, but bearings may wear slightly faster under heavy use (e.g., commercial mowing).
• Installation difficulty: Moderate. You’ll need a socket set, a puller for the pulley, and possibly a press for the bearings. Expect 30-60 minutes per spindle.
• Common gotchas: The spindle may come without grease pre-packed; add high-temperature grease before mounting. Also, the included bolts might be slightly longer than OEM—check clearance against the deck underside.
• Warranty: Usually 1-year limited. Save the receipt in case of premature bearing failure.

Should You Buy It

Yes, if you have a 46-inch fabricated-deck Cub Cadet or MTD tractor and need a cost-effective replacement for a worn or noisy spindle. It’s a solid value at $31.95, especially compared to OEM spindles that often cost $50+. Avoid if you need a stamped-deck spindle or prefer OEM for heavy commercial use.