46 Inch 918-06977A 618-06977A Deck Spindles Assembly for Cub Cadet XT1 46 LT46 XT2 LX46 RZT L 46 Craftsman T240 T8200 T3100 Troy Bilt 46 Mower Parts MTD 918-06977 618-06977 (2 Pack)

What It Is

This is a 2-pack of replacement deck spindle assemblies designed for 46-inch cutting decks on select Cub Cadet, Craftsman, Troy-Bilt, and MTD lawn tractors. Each spindle drives the blade and houses the bearings that allow smooth rotation; sold as a pair for side-by-side replacement.

Fitment & Compatibility

Deck size is critical – only fits 46-inch decks, not 42, 50, or 54-inch models. Cross-reference your OEM part number: this replaces 918-06977A, 618-06977A, 918-06977, and 618-06977. Fits Cub Cadet XT1 LT46, XT1 LT46 EFI, XT2 LX46, RZT L 46; Craftsman T240, T8200, T3100; Troy-Bilt 46-inch mowers (e.g., TB30, TB46). Also fits many MTD models with the same deck. Before buying: measure your spindle housing bolt pattern (typically 3-bolt, 3.25-inch spacing) and shaft diameter (usually 5/8-inch). Verify deck model number (stamped on deck top or side) – a mismatch means no install.

Key Things to Know

• Quality note: These are aftermarket spindles, not OEM Cub Cadet. Most users report good fit and durability for residential use, but some note bearings may not last as long as OEM under heavy commercial use.
• Installation difficulty: Moderate. Requires removing the deck, taking off blades and pulley, unbolting old spindle, and transferring pulley/belt guide. You’ll need a socket set, torque wrench (40-50 ft-lbs for spindle bolts), and possibly a puller for stuck pulleys.
• Common gotcha: The pulley retaining bolt may be reverse-threaded (left-hand) on some models – check before applying force. Also, ensure the new spindle’s shaft keyway aligns with your blade’s key; mismatched keys can cause blade wobble.
• Warranty: Typically 90-day limited warranty from seller; keep packaging and receipt for returns.

Should You Buy It

If you need a budget-friendly replacement for a worn or noisy spindle on a residential 46-inch Cub Cadet or Craftsman tractor, this 2-pack offers good value. Skip it if you have a commercial mower or want OEM longevity – pay more for genuine Cub Cadet parts. For DIY homeowners with basic mechanical skills, it’s a solid, cost-effective fix.