618-09260 Mower Deck Spindle Assembly Compatible with Cub Cadet ZT1 ZTS1-42 MTD Craftsman Z5200 Troy Bilt Mustang Z42 42 Inch Decks Zero Turn Mower Replace# 618P09260

What It Is

The 618-09260 mower deck spindle assembly is the rotating hub that drives the blade on zero-turn mowers with 42-inch decks. It’s designed for residential/commercial use on Cub Cadet ZT1 and ZTS1-42, MTD, Craftsman Z5200, and Troy-Bilt Mustang Z42 models.

Fitment & Compatibility

• Deck size: Fits only 42-inch cutting decks—measure your deck width before ordering.
• OEM vs aftermarket: This is an aftermarket replacement for OEM part #618-09260 (also #618P09260). Verify your existing spindle’s part number by checking the stamped label on the housing.
• Brand/model check: Confirmed for Cub Cadet ZT1 42E, ZTS1-42, Craftsman Z5200 (42” deck), Troy-Bilt Mustang Z42, and MTD 42” zero-turn mowers. Not for 46” or 54” decks.
• Mounting pattern: Three-bolt pattern with 2-inch bolt spacing. Remove one old spindle bolt and measure center-to-center to confirm.
• Shaft diameter: 1-inch shaft with a 5/8-inch hex bore for the blade bolt.

Key Things to Know

• Quality: Heavy-duty steel housing with sealed bearings—should outlast OEM plastic-hub spindles in dusty conditions.
• Installation: Moderate difficulty. Requires removing the deck, a 15mm socket for the three mounting bolts, and a torque wrench (blade bolt to 35–40 ft-lbs). Grease fittings are pre-lubed; no extra grease needed.
• Common gotcha: The spindle pulley may not match your old one. Reuse your original pulley if the bolt pattern differs—check alignment before final tightening.
• Warranty: 1-year limited. Return only if unused—test fit with the blade off to avoid restocking fees.

Should You Buy It

Buy this if you need a direct-fit, durable replacement for a worn or wobbling spindle on a 42-inch zero-turn mower from Cub Cadet, Craftsman, or Troy-Bilt. It’s a solid value for the price, with strong ratings and better build than OEM plastic spindles. Skip it if you have a different deck size or want an OEM-only part for warranty compliance.