8TEN Spindle for Cub Cadet MTD Craftsman Troy Bilt ZT1 ZTS1 42 Z5200 Mustang Z42 42-Inch Deck 618-09260 618P09260 2 Pack

What It Is

This is a replacement spindle assembly for the 42-inch cutting decks found on select Cub Cadet, MTD, Craftsman, and Troy-Bilt zero-turn mowers—specifically the ZT1, ZTS1, Z5200, and similar models. It’s sold as a 2-pack, intended to replace worn or failed spindles that cause blade wobble, vibration, or uneven cutting.

Fitment & Compatibility

Before buying, verify the following:

• Deck size: This spindle fits only 42-inch decks on the listed brands. Measure your deck width to confirm.
• OEM part numbers: Cross-reference your old spindle with OEM #618-09260 or 618P09260. If yours is different, it won’t match.
• Bolt pattern & shaft: The spindle has a 5/8-inch hex shaft and uses three mounting bolts on a 3.25-inch bolt circle. Check your deck’s bolt hole spacing and shaft size.
• Model series: Works on Cub Cadet ZT1, ZTS1, Z5200; Craftsman ZT 7000; Troy-Bilt Mustang Z42; and MTD 42-inch zero-turn mowers. Not for non-MTD platforms (e.g., John Deere, Husqvarna).

Key Things to Know

• Build quality: These are aftermarket replacements, not OEM Cub Cadet. They use sealed bearings and a cast iron housing, which is comparable to OEM but may have slightly shorter lifespan under heavy use.
• Installation difficulty: Moderate. You’ll need a socket set, a torque wrench (tighten mounting bolts to 25-30 ft-lbs), and a puller to remove the old spindle pulley. Expect 30-60 minutes per spindle.
• Common gotchas: The pulley and blade may not transfer perfectly—use original hardware. Check blade bolt torque (50-60 ft-lbs). Also, the spindle shaft keyway can be tight; a light file might be needed.
• Durability: Sealed bearings are pre-greased and not serviceable. If you mow in dusty or wet conditions, these may wear faster than OEM.

Should You Buy It

If you own a 42-inch Cub Cadet, MTD, Craftsman, or Troy-Bilt zero-turn and need a direct, affordable 2-pack replacement for a worn OEM spindle, this is a solid value at ~$50 per spindle. It’s best for homeowners who want to avoid dealer markup and can handle basic mechanical work. Skip it if you need a premium, long-life spindle for commercial use—stick with OEM for that.