03789900 PTO Clutch Replacement for Gravely Pro-Stance & Pro-Walk | Replaces 3789900

Overview

This 03789900 PTO clutch replacement also replaces OEM part number 3789900. Designed to match listed OEM fitment specs on Gravely and Ariens commercial mower platforms, this electric PTO clutch delivers smooth blade engagement, stable torque transfer, and reliable long-term performance.

Commonly used on Gravely Compact-Pro, Pro-Master, Pro-Stance, and Pro-Walk platforms, as well as select Ariens commercial mower configurations, this clutch provides dependable PTO engagement for consistent cutting performance in demanding mowing conditions. This assembly is also used across Ogura-style PTO clutch systems with matching specifications.

Built with a 6.10-inch pulley, 1-1/8 inch crankshaft bore, and CCW rotation, this clutch is engineered for reliable operation at speeds up to 3600 RPM. High-temperature sealed bearings and an encapsulated electromagnetic coil help protect the assembly from heat, vibration, and debris during commercial use.

Key Features

• Direct OEM replacement electric PTO clutch assembly
• Pulley Diameter: 6.10"
• Crankshaft Bore: 1-1/8"
• Rotation: CCW (counter-clockwise)
• Encapsulated electromagnetic coil for reliable engagement
• High-temperature sealed bearings for consistent performance
• Designed for commercial-duty mowing equipment
• Fully assembled and ready to install

Compatible With These Brands & Model Series

This PTO clutch fits Gravely and Ariens commercial mower platforms using the same OEM specification.

• Gravely Compact-Pro Series: 34, 44
• Gravely Pro-Master Series: 34M, 34Z, 44Z, 48Z
• Gravely Pro-Stance Series: 1934FX, 2048FL, 2048FX, 2052FX, 2452FL
• Gravely Pro-Walk Series: 36HR, 48, 48HE, 52, 52HE, 60, 60HE
• Ariens Commercial Platforms: Pro-Master 34Z, Pro-Zoom 1952S

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

Replaces OEM Part Numbers

• Gravely / Ariens: 03789900, 3789900

Aftermarket Cross-Reference Numbers

• Ogura: GT1A-AR03, GT1AAR03
• Rotary: 15783

For the full Gravely Compact-Pro, Pro-Master, Pro-Stance, Pro-Walk, Ariens, Ogura, and Rotary cross-reference breakdown, see the 03789900 PTO clutch fitment guide.

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
• Fitment Guarantee
• 1-year warranty
• Premium product images for accurate identification
• Trusted replacement supplier for commercial operators and professionals

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