The 539106880 PTO clutch is a commercial electric PTO clutch replacement used on select Husqvarna iZ, legacy Husqvarna ZTH, Dixon RAM, Dixon Kodiak, Yazoo Kees, and related AYP-built zero-turn mower platforms. This clutch family is most closely associated with 539106880, 106880, Warner 5218-102, and Warner 5218-294.
If your mower blades will not engage, the clutch clicks but does not drive the belt, the deck belt slips under load, or the PTO clutch gets hot during mowing, this clutch family may be one of the first replacement groups to check. The safest way to confirm fitment is to match the OEM number stamped, engraved, printed, or labeled on your original PTO clutch.
If your original clutch matches this family, view the direct replacement here: 539106880 PTO clutch replacement.
Need help confirming the correct PTO clutch?
Email support@ptodirectusa.com with your mower model number, serial number, OEM clutch number, and clear photos of the old clutch, wiring connector, pulley, and deck belt routing.
539106880 PTO Clutch Replacement Specs
The 539106880 clutch family is built for heavier commercial zero-turn mower applications using a 1-inch crankshaft bore, CCW rotation, and a larger deck-drive pulley than many residential PTO clutches.
- Primary OEM number: 539106880
- Related OEM number: 106880
- Crankshaft bore: 1 inch
- Pulley diameter: commonly listed around 6.10 inches on aftermarket replacements, with some OEM references near 6.31 inches
- Rotation: CCW from pulley side
- Operating speed: up to 3600 RPM
- Design: electric PTO clutch with electromagnetic coil
- Common application type: commercial Husqvarna, Dixon, Yazoo Kees, and AYP-built zero-turn mower platforms
Fitment warning: Do not choose a PTO clutch by appearance alone. Confirm the original clutch number, pulley diameter, crankshaft bore, rotation, wiring connector, pulley offset, and anti-rotation bracket position before installation.
Confirmed Replacement Numbers
This guide treats the following numbers as the safest core 539106880 replacement family:
- 539106880
- 106880
- Warner 5218-102
- Warner 5218-294
If your original clutch shows one of these numbers, the 539106880 PTO clutch replacement may be the correct fit when the physical specs and mower application also match.
Confirmed Aftermarket Cross-References
These aftermarket references are commonly associated with the 539106880 / 106880 / Warner 5218-102 / Warner 5218-294 clutch family.
- Stens: 255-589, 255-589X, 255-819X
- Xtreme: X0206, X0206-K
Always verify the original clutch number and mower application before ordering, especially if the listing uses broad marketplace cross-reference language.
Questionable or Commonly Mislisted Cross-References
Some aftermarket catalogs and marketplace listings group the 539106880 clutch with other part numbers that may belong to different clutch families. These numbers should be treated as fitment clues, not automatic replacements.
- 132733 / 539132733: often tied to different Dixon Kodiak SE or RAM Ultra applications
- 103245 / 539103245: may represent a different Dixon or Yazoo Kees clutch family
- Warner 5218-175: related to a different application group
- Warner 5218-211: commonly associated with Wright and Grasshopper references, not the safest 539106880 match
- Warner 5218-244: commonly tied to the 132733 / 539132733 Dixon family
- Wright 7140001 / 7141001: do not treat as automatic 539106880 replacements
- Grasshopper 388751: do not treat as an automatic 539106880 replacement
- Scag 481204: do not treat as an automatic 539106880 replacement
Important: A clutch can share a 1-inch bore and similar pulley size but still be wrong because of torque rating, pulley offset, wiring, anti-rotation bracket geometry, or deck-drive layout.
Compatible Husqvarna Models
The 539106880 PTO clutch family is most closely associated with older commercial Husqvarna iZ and legacy ZTH zero-turn platforms. Model names can vary by deck size, engine setup, and production year, so confirm by original clutch number before ordering.
Husqvarna iZ Series
- iZ4217
- iZ4217C
- iZ4217SKAA
- iZ4217TKAA
- iZ4218
- iZ4817
- iZ4817KAA
- iZ4817SKAA
- iZ4817TKAA
- iZ4818
- iZ4819
- iZ4821
- iZ4821T
- iZ4821TKAA
- iZ5221
- iZ5221TKAA
- iZ5223
- iZ5223TKAA
- iZ5223TKOA
- iZ5223VAN
- iZ5224
- iZ5225
- iZ6123KAA
- iZ6123TKAA
- iZ6125
- iZ6125TKOA
Legacy Husqvarna ZTH Series
- ZTH4217A
- ZTHKW4218
- ZTHQL4218
- ZTHQL4221
- ZTH4817A
- ZTH4819A
- ZTHKH4818
- ZTHKH4820
- ZTHKW4818
- ZTHKW4821
Husqvarna Z254 warning: do not treat 539106880 as the correct replacement for most modern Husqvarna Z254, Z254F, or Z248F mowers. Those machines commonly use a different PTO clutch family. Confirm the original clutch number before ordering.
Compatible Dixon Models
The 539106880 / 106880 clutch family is commonly associated with selected standard Dixon RAM and standard Dixon Kodiak commercial zero-turn mower platforms.
Dixon Standard Kodiak
- Kodiak 52
- Kodiak 60
Dixon Standard RAM
- RAM 50KZ
- RAM 61KZ
Dixon warning: some Kodiak SE and RAM Ultra models may use a different clutch family such as 132733 or 539132733. Do not assume every Dixon RAM or Kodiak model uses 539106880. Match the original clutch number before ordering.
Compatible Yazoo Kees and AYP-Built Platforms
Some Yazoo Kees and related AYP-built commercial zero-turn platforms may use the 539106880 / 106880 clutch family. Confirm by original clutch number and mower details before ordering.
- Yazoo Kees ZMBI commercial zero-turn models
- Yazoo Kees ZMKH commercial zero-turn models
- Yazoo Kees ZKW commercial zero-turn models
- Selected AYP-built commercial mower platforms using 539106880 or 106880
Do Not Confuse 539106880 With Other PTO Clutch Families
The 539106880 family can be confused with other 1-inch bore PTO clutches. Some may look similar in photos but use different pulley diameters, torque capacity, connector styles, bracket locations, or application-specific geometry.
539106880 vs. 132733 / 539132733
The 132733 / 539132733 clutch family is often associated with different Dixon Kodiak SE and RAM Ultra applications. Do not treat it as automatically interchangeable with 539106880 unless the original clutch number and physical specs confirm the match.
539106880 vs. 103245 / 539103245
The 103245 / 539103245 references may belong to a different Dixon or Yazoo Kees clutch family. Verify the original clutch number, pulley offset, wiring connector, and mower application before ordering.
539106880 vs. 532179334
The 532179334 clutch family is commonly used on lighter Husqvarna, Craftsman, Poulan, and AYP-style residential mower platforms. It should not be treated as the same clutch family as 539106880.
539106880 vs. 110-6766
The 110-6766 clutch family is tied to a different Toro, Exmark, Ariens, Gravely, and Warner crossover group. If your original clutch shows 110-6766, use the 110-6766 PTO clutch fitment guide instead.
539106880 vs. 01008434 / 759-05064
The 01008434 / 759-05064 clutch family uses a different replacement path and is commonly tied to Cub Cadet, MTD-built, Craftsman, Toro, Wheel Horse, Simplicity, Snapper, and Ferris applications. If your original clutch shows 01008434, 759-05064, 124833, or 539124833, use the 01008434 PTO clutch replacement guide.
Common Symptoms of a Failing 539106880 PTO Clutch
A failing PTO clutch can cause blade engagement problems, belt movement issues, heat, noise, or intermittent operation. These symptoms can also be caused by wiring, voltage, belt routing, idler pulleys, or deck spindles, so inspect the full system before replacing parts.
- Mower blades will not engage
- PTO clutch clicks but blades do not spin
- Deck belt does not move when the PTO is engaged
- Blades engage intermittently
- Blades slow down or stop under load
- Burning smell near the clutch or belt
- Grinding, squealing, or bearing noise near the clutch
- Clutch gets hot during mowing
- Fuse blows when the PTO is activated
- Blades continue spinning longer than normal after disengagement
If your blades will not engage at all, start with the PTO clutch won’t engage troubleshooting guide. If the clutch clicks but the blades do not spin, use the PTO clutch clicks but blades won’t spin guide. If the clutch slips under load, see the PTO clutch slipping under load guide. If the clutch gets hot or smells burnt, read the PTO clutch getting hot or smells burnt guide.
How to Confirm Fitment Before Ordering
The most reliable way to confirm compatibility is to match the OEM part number on your original PTO clutch. If the number is missing or damaged, compare the clutch dimensions and mower details carefully.
- Match the original clutch number, especially 539106880, 106880, Warner 5218-102, or Warner 5218-294
- Confirm the crankshaft bore is 1 inch
- Confirm the pulley diameter matches your original clutch
- Confirm CCW rotation from the pulley side
- Compare the wiring connector or lead style
- Check the anti-rotation bracket position
- Confirm the mower model, serial number, engine setup, and deck size
- Inspect deck belt routing, idlers, and spindle drag before installing a new clutch
Not sure where to find the clutch number? Use the PTO clutch fitment guide before ordering.
Before Installing the Replacement Clutch
Before installing a new PTO clutch, inspect the mower for issues that can damage the replacement or mimic clutch failure.
- Check the deck belt for glazing, cracks, oil, or wear
- Confirm the belt is routed correctly around the clutch pulley, idlers, and spindle pulleys
- Make sure idler pulleys and blade spindles spin freely
- Inspect the wiring connector for corrosion, loose terminals, or heat damage
- Check battery voltage and charging system condition
- Inspect the crankshaft for rust, burrs, or keyway damage
- Confirm the anti-rotation bracket is properly positioned
Review the PTO clutch installation guide before installing the replacement. If the old clutch is stuck on the crankshaft, see the PTO clutch stuck on crankshaft guide before forcing removal.
Shop 539106880 PTO Clutch Replacement
If your original clutch is marked 539106880, 106880, Warner 5218-102, or Warner 5218-294, and the core specs match, shop the 539106880 PTO clutch replacement.
You can also browse the Husqvarna PTO clutch collection or the full electric PTO clutch catalog.
Helpful PTO Clutch Resources
- 539106880 PTO Clutch Replacement
- PTO Clutch Fitment Guide
- PTO Clutch Installation Guide
- Shop Husqvarna PTO Clutches
- Shop All Electric PTO Clutches
FAQ
What does the 539106880 PTO clutch replace?
The 539106880 PTO clutch is most closely associated with 106880, Warner 5218-102, and Warner 5218-294. Some catalogs may group it with other Dixon, Wright, Grasshopper, or Scag numbers, but those should not be treated as automatic replacements without matching the original clutch number and physical specs.
Does 539106880 replace 132733 or 539132733?
Not automatically. The 132733 / 539132733 clutch family may be used on different Dixon Kodiak SE or RAM Ultra applications. Confirm the original clutch number before ordering.
Does 539106880 replace 103245 or 539103245?
Not automatically. These numbers may belong to a different Dixon or Yazoo Kees clutch family. Match the original clutch number, pulley diameter, wiring, and mower application before ordering.
What size pulley does the 539106880 PTO clutch use?
Many aftermarket replacements list a 6.10-inch pulley, while some OEM-style references may be closer to 6.31 inches. Compare your replacement to the original clutch and confirm belt tensioner travel before installation.
What crankshaft bore does this clutch use?
The 539106880 clutch family uses a 1-inch crankshaft bore.
Does this fit Husqvarna iZ models?
Many Husqvarna iZ models are associated with the 539106880 clutch family, including iZ4217, iZ4817, iZ5223, and iZ6125 series references. Fitment can vary by year, deck, and engine, so confirm the original clutch number.
Does this fit Dixon RAM and Kodiak models?
Selected standard Dixon RAM and standard Dixon Kodiak models are associated with this clutch family. Some Kodiak SE and RAM Ultra models may use a different clutch family, so confirm by original clutch number before ordering.
Does this fit Husqvarna Z254?
Usually no. Most modern Husqvarna Z254, Z254F, and Z248F mowers use a different PTO clutch family. Confirm the original clutch number before ordering.
Can PTO Direct USA help me confirm fitment?
Yes. Email support@ptodirectusa.com with your mower model number, serial number, OEM clutch number, and clear photos of the old clutch. For the best fitment help, include photos of the clutch label or stamped number, wiring connector, clutch pulley, deck belt routing, and any visible Warner or Ogura numbers on the clutch body.