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HD Switch Scag 461772 electric PTO clutch replacement for Z-Cat mowers, replaces 482911 and Ogura GT2.5-RM01.
  • HD Switch Scag 461772 electric PTO clutch replacement for Z-Cat mowers, replaces 482911 and Ogura GT2.5-RM01.
Scag 461772 / 482911 PTO Clutch | Ogura GT2.5-RM01

Scag 461772 / 482911 PTO Clutch | Ogura GT2.5-RM01

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Overview

This page covers an HD Switch aftermarket replacement electric PTO clutch for select Scag Z-Cat zero-turn mowers using the Scag 461772 clutch-number path.

This replacement cross-references Scag 482911, Ogura GT2.5-RM01 / MA-GT2.5-RM01, and Xtreme X0604. It uses a 1-inch crankshaft bore, 6-inch pulley, and CW rotation from the pulley side.

The purchase button on this page links to a third-party HD Switch aftermarket replacement sold on eBay. It is not presented as a genuine Scag or Ogura OEM clutch.

Key Features

  • Aftermarket replacement electric PTO clutch assembly
  • Primary Scag Part Number: 461772
  • Additional Scag Reference: 482911
  • Ogura Clutch Model: GT2.5-RM01, MA-GT2.5-RM01
  • Xtreme Cross-Reference: X0604
  • Crankshaft Bore: 1 inch
  • Pulley Diameter: 6 inches
  • Belt Compatibility: 1/2-inch or 5/8-inch belt
  • Rotation: CW from pulley side
  • Xtreme Reference Torque: 150 ft-lbs
  • HD Switch HiTorque Rating: 175 ft-lbs
  • Clutch Type: electric PTO clutch with integrated brake

Compatible Brands & Models

This replacement fits select Scag Z-Cat mower applications using the confirmed 461772 / Ogura GT2.5-RM01 clutch path.

Confirmed Scag Z-Cat Applications

  • Scag SZC36A-16HN: serial numbers B3900001 through B3999999
  • Scag SZC36A-17KAI: serial numbers B4000001 through B4099999
  • Scag SZC36A-19KAI: serial numbers B4100001 through B4199999
  • Scag SZC42A-19KAI: serial numbers B4400001 through B4499999
  • Scag SMZC-36A: serial numbers B4600001 through B4699999
  • Scag SMZC-42A: serial numbers B4700001 through B4799999

Fitment note: If your mower’s full model number and serial range exactly match one listed above, this is the confirmed Scag 461772 clutch path. Do not order by the broader Z-Cat name or deck size alone, because other models and production ranges may use a different PTO clutch. If your exact model or serial range is not listed, match the original clutch number or verify the clutch through the model-specific Scag parts manual.

Replaces OEM Part Numbers

  • Scag: 461772
  • Scag: 482911
  • Ariens: 00191109, 191109
  • Gravely: 00191109, 191109
  • EverRide: 00191109, 191109, EVR-191109

Aftermarket and Manufacturer Cross-References

  • Ogura: GT2.5-RM01, GT25RM01
  • Ogura: MA-GT2.5-RM01, MAGT25RM01
  • Xtreme: X0604
  • Rotary: 15769
  • Stens: 255-111
  • Sunbelt: B1XT0604
  • Rich Manufacturing: 10507

Common Symptoms of a Failing PTO Clutch

  • Blades will not engage when the PTO control is activated
  • The clutch clicks but the mower deck does not begin turning
  • Blades engage when cold and stop after the clutch heats up
  • Deck belt slips, squeals, or smokes during engagement
  • Burning smell or excessive heat around the clutch
  • Intermittent blade engagement under load
  • Grinding, bearing noise, or visible clutch damage

FAQ

What does the Scag 461772 PTO clutch replace?

This aftermarket electric PTO clutch replaces Scag 461772 on compatible Scag Z-Cat mower applications. It also cross-references Scag 482911, Ogura GT2.5-RM01, and Xtreme X0604.

Is Scag 482911 the same replacement path as 461772?

Yes. Aftermarket clutch catalogs associate Scag 482911 with the same Ogura GT2.5-RM01 replacement path as Scag 461772.

Is Ogura GT2.5-RM01 the original clutch path for Scag 461772?

Yes. Ogura GT2.5-RM01, also written as GT25RM01, is the clutch-manufacturer reference associated with the Scag 461772 path.

Is Xtreme X0604 a replacement for Scag 461772?

Yes. Xtreme X0604 is a confirmed aftermarket replacement reference for Scag 461772 and Ogura GT2.5-RM01.

What are the main specifications for this PTO clutch?

This clutch path uses a 1-inch crankshaft bore, 6-inch pulley, CW rotation from the pulley side, and supports a 1/2-inch or 5/8-inch belt.

Why does Xtreme list 150 ft-lbs while HD Switch lists 175 ft-lbs?

The Xtreme X0604 replacement is rated at 150 ft-lbs. The linked HD Switch HiTorque replacement is marketed at 175 ft-lbs.

Does this fit Scag SZC36A models?

It fits confirmed SZC36A-16HN, SZC36A-17KAI, and SZC36A-19KAI applications within the serial ranges listed on this page.

Does this fit the Scag SZC42A-19KAI?

Yes. It fits Scag SZC42A-19KAI mowers with serial numbers B4400001 through B4499999.

Does this fit Scag SMZC-36A and SMZC-42A mowers?

It fits SMZC-36A mowers with serial numbers B4600001 through B4699999 and SMZC-42A mowers with serial numbers B4700001 through B4799999.

Does this fit every Scag Z-Cat mower?

No. Do not order by the Z-Cat name alone. Match the complete mower model and serial range or the identification number on the original PTO clutch.

Does this also replace Ariens, Gravely, or EverRide 00191109?

Yes. Xtreme catalogs Ariens, Gravely, and EverRide 00191109 in the same X0604 / Ogura GT2.5-RM01 replacement path.

Is the linked clutch a genuine Scag or Ogura OEM part?

No. The linked item is presented as an HD Switch aftermarket replacement. It is not presented as a genuine Scag or Ogura OEM clutch.

Need Help Confirming Fitment?

Still not sure which PTO clutch fits your mower? Contact us for fitment help and send a clear picture of the mower identification tag or the original PTO clutch identification tag.

Need a different Scag clutch? Browse the Scag PTO clutch collection or the complete electric PTO clutch catalog.

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