8TEN Mower Spindle for Toro 42 inch Deck Timecutter Z4200 Z4202 Z4220 Z4235 Z5020 110-6866 117-1192 2 Pack

What It Is

This 8TEN aftermarket mower spindle assembly (2-pack) replaces the factory spindles on Toro 42-inch Timecutter zero-turn mowers, including Z4200, Z4202, Z4220, Z4235, and Z5020 models. It mounts the mower blade to the deck and transfers engine power to cut grass—essential for any mower with a worn or damaged spindle.

Fitment & Compatibility

• Deck size: 42-inch cutting deck only. Do not use on 44-inch, 50-inch, or 60-inch decks.
• Models confirmed: Toro Timecutter Z4200, Z4202, Z4220, Z4235, Z5020. Also fits some older 42-inch Toro residential zero-turns—check your deck model number.
• OEM cross-reference: Replaces Toro OEM part numbers 110-6866 and 117-1192 (often sold as a pair). Verify your old spindle has these numbers stamped on the housing.
• Measure before buying: Center hole diameter must be 0.625 inch (5/8 inch) for the blade bolt. Spindle flange mounting bolt pattern is 3.5 inches center-to-center. Overall spindle height should match your original (typically ~3.75 inches from flange bottom to pulley top).
• Pulley and blade not included: Reuse your existing pulley and blade. Check pulley bore size (usually 3/4 inch) and blade length (42-inch deck uses blades around 17 inches).

Key Things to Know

• Quality vs. OEM: 8TEN is a budget-friendly aftermarket brand. Expect adequate steel construction but potentially shorter bearing life compared to genuine Toro spindles. Good for light-to-medium use.
• Installation difficulty: Moderate. Requires removing the deck, unbolting the old spindle (3 bolts from top, 3 from bottom), and transferring the pulley and blade. A torque wrench is essential—blade bolt torque is typically 40–50 ft-lb.
• Common gotcha: The spindle shaft may have a slightly different shoulder height than OEM, causing the blade to sit a fraction lower or higher. Check blade-to-deck clearance (should be about 1/2 inch) after installation.
• Bearing noise: Some users report a slight hum or vibration immediately after install—this often quiets after a few hours of use. If it persists, the bearings may be defective.

Should You Buy It

If your Toro 42-inch Timecutter spindle is worn (wobbling blade, grinding noise, or uneven cut) and you want a quick, affordable fix for a residential mower, this 2-pack is a solid value. Skip it for heavy commercial use or if you demand OEM fit/finish—buy genuine Toro spindles instead for longer life and guaranteed compatibility.