If your original PTO clutch is stamped Ogura GT1A-EH01 or Ogura 53462700, this guide will help you identify the correct replacement path, confirm the key specs, and avoid common wrong-fit cross-references
The Ogura GT1A-EH01 clutch is used across multiple mower brands, including select Dixie Chopper, Husqvarna / AYP, Ferris, Gravely, Jonsered, Poulan Pro, and Craftsman applications. The safest way to order is by matching your original clutch number, bore size, pulley diameter, rotation, connector style, and mower fitment path.
What Is the Ogura GT1A-EH01 PTO Clutch?
The Ogura GT1A-EH01 is an electric PTO clutch used to engage the mower deck belt from the engine crankshaft. When the PTO switch is activated, the clutch coil creates an electromagnetic field that pulls the armature into engagement, transferring power to the mower deck.
This clutch path is commonly tied to 1-1/8 inch crankshaft bore, 6 inch class pulley diameter, and counter-clockwise rotation. Because many PTO clutches look similar, those specs matter just as much as the part number.
Ogura GT1A-EH01 Key Specs
| Spec | Confirmed Path |
|---|---|
| Ogura Number | GT1A-EH01, 53462700 |
| Crankshaft Bore | 1.125" / 1-1/8" |
| Pulley Diameter | 6" to 6-1/8" nominal / 6.10" class |
| Rotation | CCW from pulley side |
| Belt Width | 1/2" or 5/8" on supported applications |
| Voltage | 12V DC |
| Connector | Integrated pigtail / connector style varies by replacement supplier |
Fitment rule: Do not order by the Ogura number alone unless the replacement also matches your original clutch’s bore size, pulley diameter, rotation, connector style, and anti-rotation setup.
Common Ogura GT1A-EH01 Cross-References
The Ogura GT1A-EH01 clutch architecture appears under several OEM and aftermarket numbers. Common replacement paths include:
- Ogura: GT1A-EH01, 53462700
- Dixie Chopper: 500144, 500144-S
- Husqvarna / AYP: 532179335, 532414737, 532179355, 532174605
- Craftsman / AYP: 179335, 174605, 414737, 532174605
- Ferris: 5100417
- Gravely: 04553800
- Warner: 5215-140
- Rotary: 15771
- Xtreme: X0169, X0596A
- 8TEN: 810-CPT2398O
Cross-reference caution: Some catalogs list Xtreme X0596 or Stens 255-119 with conflicting 1-inch bore information. The GT1A-EH01 path discussed here requires a 1-1/8 inch bore. A 1-inch bore clutch will not slide onto a 1-1/8 inch crankshaft.
Choose the Right Product Page
The same physical clutch architecture can appear under different brand part numbers, but buyers search differently by brand. Use the product page that matches how you identified the clutch.
| If You Are Shopping By | Use This Page |
|---|---|
| Dixie Chopper 500144 | 500144 PTO clutch replacement |
| Husqvarna 532179335 / 532414737 | 532179335 PTO clutch replacement |
| Ogura GT1A-EH01 / 53462700 | Match your mower brand and original clutch number, then use the Dixie or Husqvarna-facing page above. |
The product pages may reference the same Ogura GT1A-EH01 clutch architecture, but each page is organized around a different buyer path. Dixie Chopper owners should use the Dixie Chopper page. Husqvarna, Jonsered, Poulan Pro, RedMax, Statesman, and AYP buyers should use the Husqvarna / AYP page.
Common Fitment Paths
Dixie Chopper 500144 Path
The Dixie Chopper 500144 path is commonly associated with select Dixie Chopper Zee 2 applications. It uses the Ogura GT1A-EH01 / 53462700 architecture with a 1-1/8 inch bore, 6 inch class pulley, and CCW rotation.
Shop Dixie Chopper 500144 PTO clutch replacement
Husqvarna / AYP 532179335 Path
The Husqvarna 532179335 and 532414737 path is commonly associated with select heavy-duty Husqvarna / AYP-built tractors and zero-turns, including GTH, LGT, LGTH, YTH, Z454, Jonsered, Poulan Pro, RedMax, Statesman, and related AYP applications.
Shop 532179335 PTO clutch replacement
Do Not Confuse GT1A-EH01 With These Clutch Paths
Many PTO clutches look similar at a glance. The wrong bore, pulley size, or rotation can cause immediate installation failure, belt problems, or premature clutch damage.
Dixie Chopper 500012
Dixie Chopper 500012 is a separate Warner-style clutch path with a larger 7-inch class pulley. It should not be merged with the 500144 / Ogura GT1A-EH01 path.
Dixie Chopper 500056
Dixie Chopper 500056 is another separate Dixie Chopper clutch path and may involve different rotation requirements. Do not substitute it for GT1A-EH01 unless your original part number and specs prove the match.
Lighter-Duty Husqvarna 1-Inch Bore Clutches
Some Husqvarna, Poulan Pro, and AYP mowers use smaller 1-inch bore clutches with smaller pulley diameters. These are not the same as the heavy-duty 1-1/8 inch bore GT1A-EH01 path.
Conflicting Xtreme and Stens Listings
Some aftermarket databases list similar cross-references with a 1-inch bore. For this guide, the critical fitment gate is 1-1/8 inch bore. Confirm the physical specs before ordering.
How to Confirm Your Ogura GT1A-EH01 Replacement
Before ordering, check these items on your original clutch and mower:
- Original clutch number: GT1A-EH01, 53462700, 500144, 532179335, 532414737, or another confirmed cross-reference
- Crankshaft bore: 1-1/8 inch
- Pulley diameter: 6 inch to 6.10 inch class
- Rotation: CCW from pulley side
- Belt width: 1/2 inch or 5/8 inch on supported applications
- Connector style: compare to the product photos
- Anti-rotation setup: verify the bracket, slot, or stop matches your mower
- Mower model and serial range: especially important on Dixie Chopper applications
Need help checking crankshaft size? Read the PTO clutch bore size guide. Need help with rotation? Read the PTO clutch rotation guide.
Symptoms of a Failing Ogura PTO Clutch
A failing PTO clutch may cause:
- Blades will not engage when the PTO switch is activated
- PTO clutch clicks but the blades do not spin
- Weak or delayed blade engagement
- Blades slow down or stop under load
- Clutch works cold, then fails hot after mowing for 10 to 30 minutes
- Burning smell near the clutch area
- Bearing noise, wobble, or visible heat damage
A worn PTO clutch coil can sometimes work when cold, then weaken as heat builds. This can cause weak engagement, slipping under load, or intermittent blade operation once the mower is hot.
For diagnosis, start with the PTO clutch won’t engage guide. If the clutch clicks but the blades do not move, read the PTO clutch clicks but blades won’t spin guide. If the clutch slips or fades after mowing, see the PTO clutch slipping under load guide.
Installation Note
When installing a replacement PTO clutch, inspect the crankshaft, keyway, mounting bolt, belt condition, idlers, spindles, wiring connector, and anti-rotation bracket before reassembly.
If your old clutch is rusted, seized, or will not slide off the crankshaft, do not hammer or pry against the engine. Read the PTO clutch stuck on crankshaft guide before forcing the clutch off.
Need Help Confirming GT1A-EH01 Fitment?
Email support@ptodirectusa.com with your mower model, serial number, deck size, original clutch number, and clear photos of the old clutch. Include photos of the pulley, bore, wiring connector, and anti-rotation bracket area.
Ready to shop? Use the correct buyer path below: