59118500 PTO clutch replacement for Ariens Gravely on white background.

59118500 PTO Clutch Replacement for Ariens Gravely 05118900 | Ogura 53797600

$214.95
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59118500 PTO clutch replacement for Ariens Gravely on white background.

59118500 PTO Clutch Replacement for Ariens Gravely 05118900 | Ogura 53797600

$214.95

Overview

This Ariens Gravely PTO clutch 59118500 replacement also replaces the earlier OEM part number 05118900 and cross-references Ogura 53797600, Ogura GT1.5-AR09, Rotary 17132, and 8TEN 810-CPT2447O. It is built for select Ariens Apex, Gravely ZT HD, and Gravely Pro-Turn Z zero-turn mower platforms.

Commonly used on Ariens Apex 48", 52", and 60" models, Gravely ZT HD 44", 48", 52", and 60" models, and Gravely Pro-Turn Z 48", 52", and 60" applications, this commercial-duty electric PTO clutch helps restore smooth blade engagement, proper belt drive speed, and reliable mowing performance under heavier deck loads.

Built with a 1-inch crankshaft bore, 7.125" pulley diameter, and CCW rotation, this clutch should be matched against the OEM number, product code, pulley size, bore size, connector style, and original clutch configuration before ordering.


Key Features

  • Direct replacement electric PTO clutch assembly for select Ariens Apex, Gravely ZT HD, and Gravely Pro-Turn Z mower applications
  • Pulley Diameter: ~7.125" 
  • Crankshaft Size: 1"
  • Rotation: CCW (counter-clockwise)
  • Overall height: ~3.50"
  • Voltage: 12V DC
  • Designed for commercial-duty 44", 48", 52", and 60" fabricated deck applications
  • Fully assembled and ready to install after fitment verification

Compatible With These Brands & Model Series

This PTO clutch fits select Ariens and Gravely mower platforms using OEM part number 59118500 or 05118900.

  • Ariens Apex: select Apex 48", Apex 52", and Apex 60" models, including side-discharge and rear-discharge configurations
  • Gravely ZT HD: select ZT HD 44", ZT HD 48", ZT HD 52", and ZT HD 60" models
  • Gravely Pro-Turn Z: select Pro-Turn Z 48", Pro-Turn Z 52", and Pro-Turn Z 60" models

Fitment can vary by product code, deck size, engine package, serial range, wiring connector, and original clutch specification. Always confirm your original clutch number before ordering.


Model & Product Code Notes

  • Ariens Apex: 991151, 991153, 991155, 991157, 991159, 991161, 991163, 991173, 991311, 991312, 991316, 991324, 991327
  • Gravely ZT HD / Pro-Turn Z: 991152, 991154, 991156, 991160, 991162, 991188, 991190, 991254

The 6-digit product code on the mower frame is one of the best ways to confirm fitment. Similar Ariens and Gravely model names can use different PTO clutch families depending on production year, engine package, and deck configuration.


Replaces OEM Part Numbers

  • Ariens / Gravely: 59118500, 05118900, 5118900
  • Ogura: 53797600, GT1.5-AR09

Aftermarket Cross-Reference Numbers

  • Rotary: 17132

Common search variations: Ariens 59118500, Gravely 59118500, Ariens 05118900, Gravely 05118900, 5118900, Ogura 53797600, GT1.5 AR09.


What’s Included

  • Complete electric PTO clutch assembly
  • Factory-balanced 7.16" to 7.20" pulley
  • Pre-installed bearing assembly
  • Electromagnetic coil

Note: Engine mounting hardware, clutch stop brackets, spacers, washers, and external chassis wire harnesses are not included unless specifically stated. Reuse your original OEM hardware where required.


How to Confirm Fitment

The most reliable way to confirm compatibility is to match the OEM or manufacturer number stamped on your original PTO clutch. If your clutch is marked 59118500, 05118900, 5118900, Ogura 53797600, or GT1.5-AR09, compare it to this replacement.

If the original clutch number is unreadable, verify the 1-inch crankshaft bore, ~7.125" pulley diameter, CCW rotation, wiring connector, model number, product code, serial range, and anti-rotation setup before ordering.

A matching mower series name alone does not guarantee fitment. Similar Ariens Apex, Gravely ZT HD, and Gravely Pro-Turn machines can use different PTO clutch families depending on engine package, deck size, production year, and wiring layout.


Why Buy From PTO Direct USA?

  • Fast USA shipping
  • Fitment Guarantee
  • 1-year warranty
  • Premium product images for easy identification
  • Trusted replacement supplier for residential and commercial mower parts

Need a different fitment? Browse the full Ariens PTO clutch collection, Gravely PTO clutch collection, or view all electric PTO clutches.

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