2 Pack 918-06977A Spindle Assembly with 756-05034A Idler Pulley for MTD Cub Cadet 46 inch Deck XT1-LT46, XT2-LX46, LT46, Craftsman T225 T240 T2800 Troy Bilt 46 Replaces 918-06977 618-06977A

What It Is

This is a 2-pack of spindle assemblies plus an idler pulley designed for 46-inch cutting decks on select MTD, Cub Cadet, Craftsman, and Troy-Bilt lawn tractors. It replaces the factory spindles that drive the blades and the idler pulley that tensions the belt.

Fitment & Compatibility

Deck size must be exactly 46 inches—this will not fit 42-inch or 50-inch decks. Confirmed fit for Cub Cadet XT1-LT46, XT2-LX46, LT46, Craftsman T225, T240, T2800, and Troy-Bilt 46-inch models. Check your OEM part numbers: this replaces 918-06977, 618-06977A, and 756-05034A. Measure the spindle shaft diameter (typically 5/8-inch) and bolt pattern (two-bolt vs. three-bolt) on your old spindle before buying. If your deck uses a different idler pulley width or bearing size, this kit won’t work.

Key Things to Know

• Build quality: These are aftermarket—generally solid, but not identical to OEM. Some users report slightly shorter bearing life than factory parts.
• Installation difficulty: Moderate—requires removing the deck, unbolting the old spindles, and transferring the pulley. Have a socket set and impact wrench handy.
• Common gotcha: The idler pulley included may have a different shoulder height than your original. Check belt alignment after install; you might need to shim or swap pulleys.
• What’s not included: Blades, bolts, or lock washers—reuse your old hardware or buy new separately.

Should You Buy It

If you need to replace worn spindles and an idler pulley on a 46-inch MTD-family deck, this 2-pack offers decent value for the price. It’s a good choice for DIY repair on mid-range tractors, but if you want exact OEM fit or longer service life, consider buying genuine Cub Cadet parts.