103-0690 PTO Clutch Replacement for Toro & Exmark | Replaces 109-9276, 109-2916, 5218-150 & More

Overview

This Toro PTO clutch 103-0690 replacement also replaces OEM part numbers 109-9276, 109-2916, and 653048. Designed for an exact OEM-spec fit on Toro and Exmark zero-turn mower platforms, this electric PTO clutch delivers smooth blade engagement, consistent torque transfer, and reliable long-term performance.

Commonly used on Toro Z Master and Z400 series zero-turn mowers, as well as Exmark Lazer Z and Sentar platforms, this clutch provides dependable PTO engagement for both residential and commercial mowing applications.

Built with a 7.20-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 auto cutoff, encapsulated electromagnetic coil, and high-temperature bearings help ensure consistent performance and long service life under load.

Key Features

• Direct OEM replacement electric PTO clutch assembly
• Pulley Diameter: 7.20 inches
• Crankshaft Size: 1 inch
• Rotation: CCW (counter-clockwise)
• 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 fits Toro and Exmark zero-turn mower platforms using the same OEM specification.

• Toro Z Master Series: Z400, Z441, Z449, Z450, Z453, Z147, Z148, Z149, Z150, Z153
• Exmark: Lazer Z CT, HP 523, Sentar3

Fitment can vary by model and year. Always confirm your part number matches one of the numbers listed below.

Which clutch does your GrandStand use? Find your Toro GrandStand PTO clutch by model, serial number and factory diagram.

Replaces OEM Part Numbers

• 103-0690
• 109-9276
• 109-2916
• 653048
• 1-653048
• 1-653292
• E653048
• 653292
• E653292
• 105-3630
• 109-7036
• 109-9155
• 109-5876-S
• 71410013

Cross-Reference Numbers

• Warner: 5218-150, 5218150
• Oregon: 33-187
• STENS: 255-560
• Prime: 7-06275, 7-06283
• Rotary: 11075, 12261, 12517

What’s Included

• Complete electric PTO clutch assembly
• Factory-balanced 7.20" pulley
• Pre-installed high-temperature bearings
• Encapsulated electromagnetic coil
• Plug-and-play wiring connector