46 Inch Deck Spindle Assembly Fit for Cub Cadet RZT L46 XT1-LT46 XT2-LX46 LX46 LT46 Craftsman T240 T225 T2800 T3100 T8200 T8600 MTD T roy Bilt TB2246 Lawn Mower Replaces 618-06977 918-06977A (2 Pack)

What It Is

This is a 46-inch deck spindle assembly (2-pack) designed to mount the mower blade and drive it via the belt. It’s a direct replacement for worn or failed spindles on Cub Cadet, Craftsman, MTD, and Troy-Bilt lawn tractors with a 46-inch stamped deck.

Fitment & Compatibility

Before buying, confirm your mower has a 46-inch deck (not 42" or 50"). This spindle fits Cub Cadet RZT L46, XT1-LT46, XT2-LX46, LX46, LT46; Craftsman T240, T225, T2800, T3100, T8200, T8600; MTD and Troy-Bilt TB2246 models. It replaces OEM part numbers 618-06977 and 918-06977A. Check your existing spindle’s bolt pattern (usually 3-bolt, 3.5" spacing) and shaft diameter (typically 5/8" or 3/4"). If your mower uses a different spindle housing or pulley offset, this may not align.

Key Things to Know

• Quality note: These are aftermarket spindles. Many users report they match OEM fit and durability, but some note slightly softer bearings than factory Cub Cadet parts.
• Installation difficulty: Moderate. Requires removing the deck, belt, blade, and old spindle housing. You’ll need a socket set, torque wrench, and possibly a puller for stuck spindles.
• Common gotcha: The pulley may not be pre-installed. You’ll need to transfer your existing pulley (or buy a separate one) and ensure the belt aligns properly. Check spindle shaft length – it must match your blade’s mounting height.
• Lubrication: Some aftermarket spindles come without grease fittings. If yours has a zerk, grease before first use. If not, consider adding one or plan for shorter bearing life.

Should You Buy It

If you have one of the listed tractors with a 46-inch deck and need to replace worn or wobbly spindles, this 2-pack is a solid, cost-effective choice. It’s best for DIYers comfortable with deck disassembly and belt adjustments. Avoid if you need exact OEM fit or have a different deck size – measure twice before ordering.