8TEN Mower Spindle for Exmark Toro TimeCutter 5000 5060 4235 4260 121-0751 117-7267 139-3214 3 Pack

What It Is

This is a 3-pack of aftermarket mower spindles designed to replace worn or damaged OEM spindles on Exmark and Toro TimeCutter zero-turn mowers. Each spindle assembly holds the blade and houses the bearings that allow it to spin freely under load.

Fitment & Compatibility

Before buying, confirm your mower’s deck size and model. This 3-pack fits:

• Exmark: Quest, Lazer Z, Radius E-Series, and Turf Tracer (select models)
• Toro: TimeCutter 5000, 5060, 4235, 4260, and Z Master (specific years)

Cross-references OEM part numbers 121-0751, 117-7267, and 139-3214. Measure your spindle shaft diameter (should be 1 inch) and overall length (approx. 5.5 inches). Check your deck’s spindle bolt pattern – these use a 3-bolt triangular layout. If your deck uses a 4-bolt pattern or a different shaft size, these won’t fit.

Key Things to Know

• Quality vs OEM: These are aftermarket, not Toro factory parts. They use sealed bearings that are comparable to OEM, but the housing and shaft may have slightly looser tolerances. Most users report no issues, but some note a faint wobble under heavy load.
• Installation difficulty: Moderate. You’ll need a socket set, a torque wrench (tighten spindle bolts to 40–50 ft-lbs), and a puller to remove old spindles if they’re seized. Expect 30–60 minutes per spindle.
• Common gotcha: The grease fitting on these spindles is small and can be hard to access once installed. Grease them lightly before mounting, and use a needle-style grease gun for future maintenance.
• Pack contents: You get three complete spindle assemblies with bearings pre-installed. No blades, pulleys, or hardware included – reuse your original pulley and bolts.

Should You Buy It

If you’re maintaining a TimeCutter or Exmark with a 3-bolt spindle deck and want to save roughly 40% vs buying three OEM spindles individually, this pack is a solid value. It’s best for DIY owners who can handle basic wrench work and don’t mind aftermarket tolerances. If you run a commercial operation or need absolute zero-vibration blade spin, stick with OEM.