117-7439 121-0751 Spindle Assembly Fit for 42" 50" Toro Time Cutter SS5000 SS4200 SS4235 SS4260 MX5000 MX5050 Exmark Quest Zero Turn Mower Replaces 117-7267 117-7268 117-0751 139-3214(2 Pack)

What It Is

This is a 2-pack of spindle assemblies for zero-turn mowers, specifically designed for Toro TimeCutter and Exmark Quest models with 42" or 50" decks. The spindle drives the mower blade—if it’s worn or noisy, your cut quality suffers.

Fitment & Compatibility

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

• Toro TimeCutter models: SS5000, SS4200, SS4235, SS4260, MX5000, MX5050 (42" and 50" decks only).
• Exmark Quest models (check your specific serial number—not all Quest trims are identical).
• Replaces OEM part numbers: 117-7267, 117-7268, 117-0751, 139-3214.

Critical checks:

• Measure your spindle bolt pattern (center-to-center of mounting holes) and shaft diameter—this assembly uses a standard 1" shaft and 3-bolt pattern.
• Confirm your deck is 42" or 50"—larger or smaller decks use different spindles.
• This is an aftermarket part, not OEM Toro. Quality is generally good, but tolerance may vary slightly.

Key Things to Know

• Installation difficulty: Moderate. Requires removing the deck, belt, pulley, and blade. You’ll need a socket set, torque wrench (blade nut: ~70-90 ft-lbs), and possibly a puller for stubborn pulleys.
• Common gotcha: The spindle housing may not include the pulley or blade—transfer your existing pulley and blade to the new spindle. Check your old assembly before disassembly.
• Quality note: At $40.99 for two, it’s a solid value vs. OEM (often $30-40 each). Users report good durability for residential use, but commercial operators may prefer OEM for longer life.
• Noise check: If your mower vibrates or makes a grinding sound, the bearings are likely shot. Replacing both spindles at once is smart—the other is probably close to failure.

Should You Buy It

If you own a Toro TimeCutter or Exmark Quest with a 42" or 50" deck and need to replace noisy or worn spindles, this 2-pack is a cost-effective, reliable fix for residential use. It’s a good choice for DIYers comfortable with deck removal—just verify your model and bolt pattern first. Commercial users may want OEM for longer intervals between replacements.