CheeMuii 117-0751 117-7267 117-7268 Assembly for Toro 121-0751 117-7439 285-923 Exmark 121-0751 117-7268 117-7439 Toro Time Cutter ss5000 ss5060 ss4235 ss4260 Spindle Assembly 2 Packs

What It Is

This is a replacement spindle assembly for zero-turn mowers, specifically designed to mount and drive the mower deck blades. It’s intended for Toro TimeCutter models (SS5000, SS5060, SS4235, SS4260) and select Exmark decks, sold as a 2-pack for simultaneous replacement.

Fitment & Compatibility

Before buying, verify your mower’s model and deck size. This assembly fits:

• Toro TimeCutter models: SS5000, SS5060, SS4235, SS4260 (and others using OEM part 121-0751, 117-7439, or 285-923)
• Exmark decks using OEM part 121-0751, 117-7268, or 117-7439
• OEM cross-references: CheeMuii 117-0751, 117-7267, 117-7268 replace Toro 121-0751, 117-7439, 285-923 and Exmark 121-0751, 117-7268, 117-7439

What to check:

• Deck size (42”, 46”, 50”, 54”): measure center-to-center spindle bolt spacing (typically 4.5” or 5.5”) and compare with your existing spindle housing.
• Bolt pattern: ensure the mounting holes align with your deck’s spindle bracket (usually 4-bolt pattern).
• Shaft diameter: confirm 1” or 7/8” shaft to match your blade and pulley.
• Pulley compatibility: these spindles come with a pulley; verify belt width (typically 1/2” or 5/8”) matches your deck.

Key Things to Know

• Quality vs OEM: Aftermarket spindles often use sealed bearings with less grease capacity than OEM. Expect 1–2 seasons on a residential mower, less on commercial use. OEM parts typically last longer.
• Installation difficulty: Moderate. Requires removing deck, belt, pulley, and old spindle. Use a torque wrench on bolts (specs: 40–50 ft-lbs for housing bolts, 70–90 ft-lbs for blade bolt). Check blade balance after install.
• Common gotchas:
  • Spindle may come with a thin washer that can loosen; apply thread locker to blade bolt.
  • Pulley may not align perfectly with OEM belt path—rotate by hand before running to check for rubbing.
  • Deck vibration after replacement often means one spindle is slightly off; re-torque all bolts evenly.
• Warranty: CheeMuii offers limited warranty; keep packaging and proof of purchase for returns.

Should You Buy It

If you’re a DIY homeowner with a Toro TimeCutter or Exmark zero-turn and need to replace worn spindles (noisy bearings, blade wobble), this 2-pack is a cost-effective fix for the price of a single OEM unit. It’s not for heavy commercial use or high-hour machines—stick with OEM for durability there. For occasional residential mowing, it’s a solid value.