OakTen Spindle Assembly for Toro TimeCutter SS4235 SS5000, Replaces 117-7439, 117-7267, 121-0751, Fits 34" 42" 50" 54" 60" Decks, Compatible with Exmark Quest Zero-Turn Mowers

What It Is

This is a replacement spindle assembly for zero-turn mowers, specifically designed to fit Toro TimeCutter and Exmark Quest models. It drives the mower blade and is used for repairing or replacing worn-out spindles on 34" to 60" decks.

Fitment & Compatibility

• Check deck size: Fits 34", 42", 50", 54", and 60" decks. Verify your deck width before ordering.
• Model match: Directly replaces OEM part numbers 117-7439, 117-7267, and 121-0751. Compatible with Toro TimeCutter SS4235, SS5000, and Exmark Quest zero-turn mowers.
• Measurements: The spindle has a 1" shaft diameter and uses 5/8" bolts. Measure your old spindle’s shaft length and bolt pattern to confirm.
• OEM vs aftermarket: This is a direct aftermarket replacement, not OEM Toro. It matches original dimensions but may have slight differences in bearing quality.

Key Things to Know

• Build quality: Users report it’s well-made with sealed bearings, but some note the housing is slightly lighter than OEM. Inspect for burrs before installation.
• Installation difficulty: Moderate. You’ll need basic tools (socket set, jack, and a puller to remove the old spindle). Expect 30–60 minutes per spindle.
• Common gotcha: The spindle pulley nut may be reverse-threaded on some models—check your manual. Also, torque to 45–55 ft-lbs; overtightening can warp the housing.
• Warranty: Typically includes a 1-year warranty; verify with seller. No returns once installed.

Should You Buy It

If you own a Toro TimeCutter or Exmark Quest and need a budget-friendly spindle replacement, this is a solid choice. It’s well-rated, fits multiple deck sizes, and costs less than OEM. Best for DIYers comfortable with medium-difficulty repairs. Skip it if you prefer OEM parts for warranty or commercial use.