Blade Spindle Belt Rebuild Kit for Cub Cadet 46 inch Deck LT1045 LT1046 Spindle 918-0660 618-0660, Blades 177-2144 742-0611 942-0612, 122" Belt 754-04153 954-04153

What It Is

This is a comprehensive rebuild kit for the blade spindle assembly and drive belt system on Cub Cadet 46-inch mower decks, specifically for LT1045 and LT1046 models. It includes the spindle housing (918-0660/618-0660), three blades (177-2144, 742-0611, 942-0612), and a 122-inch drive belt (754-04153/954-04153) to restore cutting performance and belt drive functionality.

Fitment & Compatibility

• Deck size: 46-inch deck only (not 42" or 50").
• Models: Cub Cadet LT1045, LT1046, and select other LT/GT series with the same deck—verify your mower’s model number on the frame tag.
• OEM cross-reference: Spindle 918-0660/618-0660; blades 177-2144, 742-0611, 942-0612; belt 754-04153/954-04153. Check your existing parts for these numbers.
• Measurement check: Belt length is 122 inches (not 120" or 125"). Measure your old belt end-to-end if unsure. Blade length should be 18.5 inches (center hole to tip) for 46" decks.
• Aftermarket note: This is a non-OEM kit but uses compatible dimensions. If you need exact OEM fit, buy genuine Cub Cadet parts separately.

Key Things to Know

• Installation difficulty: Moderate. Requires removing the deck, disassembling the spindle, and routing the belt correctly. A socket set and pry bar are needed.
• Common gotcha: The spindle bearings may be pre-installed—if not, you’ll need to press them in. Check the kit contents before starting.
• Quality: Budget-friendly alternative to OEM, but some users report shorter bearing life (1–2 seasons vs. 3–4 for OEM). Inspect blade balance after install.
• Belt routing: The 122" belt is specific to this deck—wrong tension will cause slipping or deck damage. Refer to your mower’s manual for the belt path diagram.

Should You Buy It

Buy this if you need a full spindle, blade, and belt replacement for your Cub Cadet 46-inch deck and want a single kit to save time and money. It’s a decent value for DIYers who can handle moderate installation, but if you prioritize long-term durability or have a non-standard deck, stick with individual OEM parts.