42" Deck Rebuild Kit for Cub Cadet XT1-LT42 XT1-LT42C XT2-LX42 LT42 CYT4220 CYT4220SE T7800 T8000 Include 2 Pack 918-06976 Spindle with 756-05034A Idler Pulley 942-04308 Blades 954-05021 Belt

What It Is

This is a complete 42-inch deck rebuild kit for specific Cub Cadet lawn tractors and zero-turn mowers. It includes two spindles, one idler pulley, two blades, and one belt—everything needed to refresh the cutting deck’s rotating components in one purchase.

Fitment & Compatibility

Before buying, confirm your mower has a 42-inch stamped steel deck (not fabricated). This kit is listed for models: Cub Cadet XT1-LT42, XT1-LT42C, XT2-LX42, LT42, CYT4220, CYT4220SE, T7800, and T8000. The spindle part number (918-06976) and idler pulley (756-05034A) are OEM replacements. Measure your existing blade length—these blades (942-04308) are 18.25 inches center-to-center. The belt (954-05021) is a 42-inch deck belt; double-check your deck’s belt routing diagram. This kit will not fit 46-inch or 50-inch decks, nor older Cub Cadet models with different spindle mounts.

Key Things to Know

• Quality concerns: Only 1 review at 3.0 stars suggests possible issues with fit or durability. Inspect spindle bearings and pulley for smooth rotation before installing.
• Installation difficulty: Moderate. You’ll need a socket set, torque wrench, and possibly a puller for stubborn spindles. Expect 1–2 hours.
• Common gotcha: The idler pulley bracket may not be included—reuse your old one if it’s in good shape. Also, the blades may require balancing after installation.
• Belt length: Verify the belt matches your deck’s routing (some Cub Cadet decks use a slightly different belt length despite same deck size).

Should You Buy It

Buy this if you’re rebuilding a worn 42-inch Cub Cadet deck on one of the listed models and want a single kit for convenience. Skip it if you’ve had fitment issues with aftermarket parts in the past, or if you only need one spindle or a blade set—individual OEM parts may offer better reliability at a similar total cost.