46 Inch Mower Deck Spindle Assembly Fit for Cub Cadet XT1-LT46 XT2-LX46 Troy Bilt Super Bronco 46 TB2246 Craftsman T240 T225 T8200 Lawn Mower Replaces OEM 918-06977A 918-06977 618-06977

What It Is

This spindle assembly is the rotating hub that drives the mower blade on 46-inch deck lawn tractors. It’s designed for Cub Cadet XT1-LT46, XT2-LX46, Troy Bilt Super Bronco 46, TB2246, and Craftsman T240, T225, T8200 models.

Fitment & Compatibility

• Deck size: 46-inch decks only. Measure your deck width to confirm.
• OEM cross-reference: Replaces Cub Cadet OEM numbers 918-06977A, 918-06977, and 618-06977. Check your current spindle for these numbers.
• Brand fit: Fits Cub Cadet, Troy Bilt, and Craftsman models listed in the title. Not guaranteed for other brands.
• Physical check: Measure spindle shaft diameter (typically 5/8-inch) and bolt pattern (usually 3-bolt, 4-inch spacing). Compare to your old spindle.
• Bearing type: Pre-assembled with sealed bearings—no separate bearing cups to press in.

Key Things to Know

• Quality: Aftermarket part, not OEM. Most buyers report it’s a solid replacement, but some note bearings may be noisier than factory.
• Installation difficulty: Moderate. Requires removing deck, belt, blade, and old spindle. You’ll need a socket set, wrench, and possibly a puller for stuck spindles.
• Common gotchas: Spindle bolt torque is critical—typically 30-40 ft-lbs. Over-tightening can warp housing. Also, check belt alignment after install; a misaligned spindle can cause belt wear.
• Warranty: No OEM warranty. Return window varies by seller.

Should You Buy It

Buy this if you have one of the listed models and need a budget-friendly replacement for a worn or noisy spindle. It’s not for heavy commercial use, but for residential mowing it’s a reliable fix. If you want guaranteed OEM fit and quiet operation, pay more for the genuine Cub Cadet part.