103-0690 PTO Clutch Replacement for Toro & Exmark | Replaces 109-9276, 109-2916, 653048 & 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.

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

Aftermarket Cross-Reference Numbers

• 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

Why Buy From PTO Direct USA?

• Fast USA shipping
• OEM-spec