42" Deck 918-04822A Spindle Rebuild Kit for Cub Cadet LTX1040 LTX1042, for MTD RZT-42, Includes 2 Spindles 618-04822A with Pulley, 2 Blades 742-04308, 2 Idlers 756-04129, 1 96 1/2" Belt 754-04060

What It Is

This is a complete 42-inch deck spindle rebuild kit for Cub Cadet LTX1040, LTX1042, and MTD RZT-42 mowers. It includes two spindles with pulleys, two blades, two idler pulleys, and a 96.5-inch drive belt—everything needed to refresh a worn-out cutting deck.

Fitment & Compatibility

Check deck size first: This kit fits only 42-inch stamped decks. Measure your deck’s cutting width; if it’s not exactly 42 inches, stop here.
Model fit: Confirmed for Cub Cadet LTX1040 and LTX1042 (all variants) and MTD RZT-42. Also fits many MTD, Troy-Bilt, and Yard Machines models with a 42-inch deck using OEM spindle 618-04822A.
OEM vs aftermarket: These are aftermarket spindles, blades, and idlers—not genuine Cub Cadet parts. They match OEM dimensions but may vary slightly in metal thickness or bearing quality.
Belt measurement: The 96.5-inch belt is for 42-inch decks with a specific pulley layout. Verify your old belt length (printed on side) matches 96.5 inches exactly.

Key Things to Know

• Installation difficulty: Moderate. You’ll need a socket set, a torque wrench (spindle bolts: 30-35 ft-lbs), and a jack or blocks to remove the deck. Expect 1-2 hours for a first-timer.
• Blade quality: The included 742-04308 blades are standard-duty steel. Fine for residential lawns with grass under 4 inches, but not for heavy mulching or rocky terrain.
• Common gotcha: The idler pulleys (756-04129) use sealed bearings—they’re not greasable. If you mow in dusty conditions, replace them every 2-3 seasons.
• Belt alignment: After installing, check belt tracking on all pulleys. A misaligned belt can cause vibration or premature wear. Adjust deck leveling if needed.

Should You Buy It

This kit is a solid value for homeowners with a Cub Cadet or MTD 42-inch deck who want to replace worn spindles, blades, and belt in one shot. It’s not for commercial use or heavy-duty conditions—the blades and idlers are entry-level. If your deck is over 5 years old with visible spindle wobble or blade damage, this is a cost-effective refresh. For pro-grade durability, buy OEM spindles separately.