110-6766 PTO Clutch Replacement for Toro, Exmark, Ariens, Gravely | Replaces 103-9950, 00191700, & more

Overview

This 110-6766 PTO clutch replacement is a multi-fit electric clutch used primarily across Toro and Exmark zero-turn mower platforms. It also replaces OEM numbers found on select Ariens and Gravely models. For complete compatibility details including all brands, model series, and OEM cross‑references, see the full fitment guide.

It replaces OEM part numbers 103-9950, 100-6059, 108-9510, 00191700, and more, all within the same clutch specification group.

Designed for an exact OEM-spec fit, this clutch delivers smooth blade engagement, consistent torque transfer, and reliable long-term performance across residential and light commercial zero-turn mower applications.

Commonly used on Toro TimeCutter and Titan series, Exmark Quest models, Ariens Zoom platforms, and Gravely ZT and Pro-Master series, this clutch provides dependable PTO engagement across residential and commercial mowing applications.

Built with a 6.10-inch pulley diameter, 1-inch crankshaft bore, and CCW rotation, this clutch is engineered for reliable operation at engine speeds up to 3600 RPM. A 370°F thermal cutoff, encapsulated electromagnetic coil, and high-temperature bearings ensure consistent performance and long service life under load.

Key Features

• Direct OEM replacement electric PTO clutch assembly
• Pulley Diameter: 6.10 inches
• Crankshaft Size: 1 inch
• Rotation: CCW (counter-clockwise)
• Torque: 132ft-lb
• Operating Speed: Up to 3600 RPM
• 370°F Thermal Auto Cutoff for overheating protection
• Encapsulated electromagnetic coil for reliable engagement
• High-temperature bearings for consistent performance
• Fully assembled and ready to install

Compatible With These Brands & Model Series

This PTO clutch platform is used across Toro, Exmark, Gravely, Ariens, and Cub Cadet mower platforms that share similar OEM specification.

• Toro: TimeCutter, Titan, and Z-series zero-turn mowers
• Exmark: Quest series and select commercial models
• Ariens: Zoom and Pro-Master series
• Gravely: ZT and Pro-Master series
• Cub Cadet / MTD Platforms: Models using OEM 717-04214 and related numbers

Some older Toro-built Wheel Horse models may also use this PTO clutch depending on configuration. Always verify by OEM part number before ordering.

For a full breakdown of compatible models and platform variations, refer to our 110-6766 PTO clutch fitment guide for detailed application coverage.

Replaces OEM Part Numbers

This PTO clutch is part of a multi-fit platform used across Toro, Exmark, Ariens, Gravely, John Deere, and select MTD-built mower applications.

• Toro / Exmark: 110-6766, 103-9950, 100-6059, 108-9510
• Ariens / Gravely: 00191700, 191700
• John Deere / Wright: AM138234
• MTD / Cub Cadet: 917-04214, 717-04214, 917-04526, 717-04526

Additional Cross References

• D38155, GDA10017, 71410006

Aftermarket Cross-Reference Numbers

• Warner: 5219-45, 5219-81, 5219-34A, 5219-34, 5219-19
• Xtreme: X0005
• Oregon: 33-130
• 8TEN: 810-CPT2354O
• STENS: 255-825X, 255-146

What’s Included

• Complete electric PTO clutch assembly
• Factory-balanced 6.10" pulley
• Pre-installed high-temperature bearings
• Encapsulated electromagnetic coil
• Plug-and-play wiring connector

Why Buy From PTO Direct USA?

• Fast USA shipping
• OEM-spec fitment guarantee
• 1-year warranty
• Premium PDS-1 product images
• Trusted replacement supplier for homeowners and professionals

Need a different fitment? Browse the full electric PTO clutch catalog to see all available replacement options.