103-3245 PTO Clutch Replacement for Exmark Lazer Z & Toro Z Master | Replaces 103-6590, 103-3131

Overview

This Exmark PTO clutch 103-3245 replacement also replaces OEM part numbers 103-6590 and 103-3131. Designed for an exact OEM-spec fit on Exmark Lazer Z and Toro Z Master commercial mower platforms, this electric PTO clutch restores smooth blade engagement, consistent torque transfer, and reliable long-term mowing performance.

Commonly used on Exmark Lazer Z and Toro Z Master commercial zero-turn mower platforms, this clutch provides dependable PTO engagement for demanding commercial mowing applications.

Built with a 7.20-inch pulley diameter, 1-inch crankshaft bore, and CW rotation, this clutch is engineered for reliable operation at engine speeds up to 3600 RPM. High-temperature sealed bearings and an encapsulated electromagnetic coil help protect the assembly from heat, vibration, and heavy-duty mowing conditions.

Key Features

• Direct OEM replacement electric PTO clutch assembly
• Pulley Diameter: 7.20 inches
• Crankshaft Size: 1 inch
• Rotation: CW (clockwise)
• Operating Speed: Up to 3600 RPM
• High-temperature sealed bearings for consistent operation
• Encapsulated electromagnetic coil for reliable engagement
• Designed for stable performance under load
• Fully assembled and ready to install

Compatible With These Brands & Model Series

This PTO clutch fits Exmark and Toro commercial mower platforms using the same OEM specification.

• Exmark Lazer Z Series: AC (S/N 440,000 & up), AS (S/N 440,000–669,999), and select 2003–2006 models
• Toro Z Master Series: Z500, Z528, Z553 commercial zero-turn models

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

Replaces OEM Part Numbers

• Toro / Exmark: 103-3245, 103-6590, 103-3131

Aftermarket Cross-Reference Numbers

• Warner: 5218-100, 5218-228, 5218-243
• Xtreme: X0257
• STENS: 255-243

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 fitment guarantee
• 1-year warranty
• Premium PTO Direct USA product images for easy identification
• Trusted replacement supplier for commercial operators and professionals

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