918-04822B 618-04822A 618-04822 918-04822 Spindle Assembly for 42 Inch Mower Deck Cub Cadet MTD Troy Bilt LTX1042 LTX1040 RZT-42 Cub Cadet 60" Deck Ultima ZT1-60 ZTS2-60 ZT2-60 ZT3-60 FAB (1-Pack)

What It Is

This is a replacement spindle assembly for the 42-inch and 60-inch fabricated (FAB) mower decks on Cub Cadet, MTD, and Troy-Bilt lawn tractors and zero-turn mowers. It houses the blade spindle bearings and pulley, allowing the blade to spin freely.

Fitment & Compatibility

• Deck size is critical: This spindle fits only 42-inch and 60-inch fabricated (FAB) decks, not stamped steel decks. Verify your deck is stamped “FAB” on the deck shell.
• Model check: Fits Cub Cadet LTX1042, LTX1040, RZT-42, and Cub Cadet Ultima ZT1-60, ZTS2-60, ZT2-60, ZT3-60. Also fits many MTD and Troy-Bilt models with the same deck.
• OEM cross-reference: Replaces OEM numbers 918-04822B, 618-04822A, 618-04822, 918-04822. Not a genuine Cub Cadet part—it’s an aftermarket alternative.
• Measure before buying: The spindle housing is typically 3-3/8" tall with a 1" diameter shaft. Measure your old spindle height and shaft diameter to confirm.

Key Things to Know

• Quality: Buyers report it’s a solid aftermarket replacement, but some note the bearings may not last as long as OEM. Grease it immediately before installation.
• Installation difficulty: Moderate. You’ll need a wrench set, a jack to lift the mower, and possibly a puller to remove the old spindle. Expect 30–60 minutes per spindle.
• Common gotcha: The pulley bolt is reverse-threaded on many Cub Cadet decks (turns clockwise to loosen). Don’t force it the wrong way.
• 1-pack note: This is a single spindle. If your deck has two or three spindles, buy multiple packs.

Should You Buy It

If you need a budget-friendly replacement for a worn spindle on a 42" or 60" fabricated deck and are comfortable with basic mechanical work, this is a good value. Skip it if you want OEM longevity or have a stamped steel deck—it won’t fit.