B1XT0720 PTO Clutch Replacement for Ariens Gravely | Replaces 63124700, 53114100 & More

Overview

This Ariens PTO clutch 63124700 replacement also replaces part numbers 63102500, 53124500, 53114100, and 53102300. Designed for an exact OEM-spec fit on Ariens and Gravely lawn tractor platforms, this electric PTO clutch delivers smooth blade engagement, consistent torque transfer, and reliable long-term performance.

Commonly used on Ariens GT Series, Grand Sierra, and Gravely lawn tractor platforms, this clutch provides dependable PTO engagement for consistent cutting performance in demanding mowing conditions.

Built with a 4.88-inch pulley, 1-1/8 inch crankshaft bore, and CCW rotation, this clutch is engineered for reliable operation at speeds up to 3600 RPM. With a 200 ft-lbs torque rating, durable internal components, and low-noise operation, it is well-suited for heavy-duty lawn tractor applications.

Key Features

• Direct OEM replacement electric PTO clutch assembly
• Pulley Diameter: 4.88"
• Crankshaft Size: 1-1/8"
• Rotation: CCW (counter-clockwise)
• Operating Speed: Up to 3600 RPM
• Torque Rating: 200 ft-lbs
• Encapsulated electromagnetic coil for reliable engagement
• High and low temperature bearings for consistent performance
• Low noise operation under load
• Fully assembled and ready to install

Compatible With These Brands & Model Series

This PTO clutch fits Ariens and Gravely lawn tractor platforms using the same specification.

• Ariens GT Series: GT 10, GT 12, GT 14, GT 16, GT 17, GT 18, GT 19, GT 20
• Ariens S Series: S10G, S12H, S14G, S14H, S16H, S18H
• Ariens Grand Sierra Series
• Gravely Lawn Tractors: 7173-H and 18H models

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

Replaces OEM Part Numbers

• Ariens / Gravely: B1XT0720, 63124700, 63102500, 53124500, 53114100, 53102300
• 39158, 039158, 3135700, 03135700, 3135600, 03135600, 3064500, 03064500, 3031200, 03031200

Aftermarket Cross-Reference Numbers

• Warner: 5209-14
• STENS: 255-065X, 255-583, 255-583X

What’s Included

• Complete electric PTO clutch assembly
• Factory-balanced 4.88" pulley
• Pre-installed high-temperature bearings
• Encapsulated electromagnetic coil
• Plug-and-play wiring lead and connector
• Installation washer set
• L-shaped installation tool

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 homeowners and professionals

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