2 Pack 918-06977A Spindle Assembly for Cub Cadet XT1 LT46 Mowers | with 756-05034A Idler Pulley 954-05022A 1/2x108 for Cub Cadet XT2 LX46, Craftsman T240 T8200, Troy Bilt Super Bronco 46" Deck

What It Is

This is a 2-pack of spindle assemblies plus an idler pulley and a 1/2x108" drive belt, designed for 46-inch cutting decks on select Cub Cadet, Craftsman, and Troy-Bilt lawn tractors. It replaces worn spindles that cause blade wobble, vibration, or deck noise, and includes the belt and pulley needed for a full service.

Fitment & Compatibility

Before buying, confirm your mower has a 46-inch stamped steel deck (not fabricated). This kit fits Cub Cadet XT1 LT46, XT2 LX46, Craftsman T240/T8200, and Troy-Bilt Super Bronco 46" models. Check your OEM part numbers: the spindles replace Cub Cadet 918-06977A (or 918-06977), the idler pulley replaces 756-05034A, and the belt replaces 954-05022A (1/2" x 108"). Measure your belt length—if it’s slightly different, the 108" may not fit. Aftermarket, so verify deck bolt pattern (usually 3-bolt, 4" spacing) and shaft diameter (typically 5/8").

Key Things to Know

• Quality: Spindles are steel with sealed bearings—good for residential use but not heavy commercial. Grease fittings are not present; they are pre-lubed and sealed.
• Installation difficulty: Moderate. Requires removing the deck, swapping spindles (note left/right blade orientation), and routing the belt correctly. A belt diagram is helpful.
• Common gotchas: The idler pulley may have a different shoulder height than OEM—check clearance against deck. The belt is generic; if your deck uses a spring tensioner, ensure the 108" length matches the original.
• Pack contents: You get two spindles, one idler pulley, and one belt—verify you don’t need a second belt or additional pulleys for a full service.

Should You Buy It

This is a solid, cost-effective kit for DIY owners of 46-inch Cub Cadet or Craftsman tractors who want to replace worn spindles and refresh the belt/pulley in one go. It’s not for commercial mowers or decks with different spindle bolt patterns. If your spindles are noisy or blades wobble, this solves it without hunting for separate parts.