The 00191700 PTO clutch, also commonly listed as 191700, is an electric PTO clutch used on select Ariens, Gravely, and EverRide / Yellow Jacket zero-turn mower platforms. This clutch family is commonly tied to Warner 5219-45 and is built around a 1-inch crankshaft bore, 6.00-inch pulley, CCW rotation, and heavy-duty 125 ft-lb torque rating.
If your mower blades will not engage, the clutch clicks but the deck belt does not move, or the blades slow down under load, the PTO clutch may be worn, weak, slipping, or failing electrically. This guide helps you confirm whether your mower belongs in the Ariens / Gravely 00191700 PTO clutch replacement family before ordering.
Already confirmed your part number? View the 00191700 PTO clutch replacement or browse the Ariens PTO clutch collection and Gravely PTO clutch collection.
Need help confirming fitment? 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.
00191700 PTO Clutch Replacement Specs
The Ariens / Gravely 00191700 clutch family is commonly associated with a 1-inch crankshaft bore, 6.00-inch pulley, CCW rotation, and an integrated wire harness. Always compare the replacement clutch to your original unit before ordering.
- Primary replacement number: 00191700
- Alternate OEM number: 191700
- Warner cross-reference: 5219-45
- Crankshaft bore: 1 inch
- Pulley diameter: 6.00 inches
- Rotation: CCW from pulley side
- Torque rating: 125 ft-lbs
- Voltage: 12V DC
- Belt compatibility: 1/2" or 5/8" A/B belt profile
- Connector style: integrated watertight wire harness
Fitment warning: A PTO clutch can look similar and still be wrong. Confirm the OEM number, bore size, pulley diameter, pulley offset, rotation, wiring connector, and anti-rotation bracket before installation.
Replaces OEM Part Numbers
The 00191700 PTO clutch replaces Ariens, Gravely, and EverRide / Yellow Jacket OEM numbers in this specific clutch family.
Ariens / Gravely
- 00191700
- 191700
EverRide / Encore / World Lawn
- 00191700
- 191700
Manufacturer & Aftermarket Cross-Reference Numbers
- Warner Electric: 5219-45, 521945
- Xtreme: X0005
- STENS: 255-825X
- Oregon: 33-130
- 8TEN: 810-CPT2354O
Use these cross-reference numbers as a starting point, then verify the original clutch specs before ordering the 00191700 PTO clutch replacement.
Compatible Ariens Models Using 00191700
The 00191700 clutch family is commonly used on select Ariens Zoom and Pro-Master models. Fitment can vary by product code, serial range, engine package, and previous service history, so always confirm the OEM clutch number when possible.
Ariens Zoom Series
- Zoom 1540: product code 915317, 40" deck
- Zoom 1640: product code 915075, 40" deck, serial 025000 and up
- Zoom 1740: product code 915044, 40" deck, serial 005000 and up
- Zoom 1744: product code 915318, 44" deck
- Zoom 1840: product code 915077, 40" deck, serial 025000 and up
- Zoom 1944: product code 915046, 44" deck, serial 005000 and up
- Zoom 2044: product code 915079, 44" deck, serial 025000 and up
- Zoom 2148: product code 915048, 48" deck, serial 005000 and up
- Zoom 2348: product code 915081, 48" deck, serial 025000 and up
- Zoom 2352: product code 915050, 52" deck, serial 005000 and up
- Zoom 2552: product code 915083, 52" deck, serial 025000 and up
Ariens Zoom XL Series
- Zoom 2550XL
- Zoom 2552XL
- Zoom 2560XL
Ariens Pro-Master
- PM34Z
For broader Ariens routing, see the Ariens PTO clutch replacement guide.
Compatible Gravely Models Using 00191700
The 00191700 clutch family is also tied to select Gravely ZT and Pro-Master applications. Be careful with broad “Gravely ZT” claims, because Gravely used multiple PTO clutch families across different product years, deck sizes, and engine packages.
Gravely ZT Series
- ZT 1540, 1640, 1740, and 1840 40" deck applications
- ZT 1944 and 2044 44" deck applications
- ZT 2148 and 2348 48" deck applications
- ZT 2352 and 2552 52" deck applications
Gravely Pro-Master Series
- Pro-Master 34Z
- Pro-Master 44Z
- Pro-Master 144Z
For broader Gravely fitment help, see the Gravely PTO clutch replacement guide.
Compatible EverRide / Yellow Jacket Models
The 00191700 clutch family also appears on select EverRide, Encore, and World Lawn Yellow Jacket applications.
EverRide / Yellow Jacket Series
- YJ1840: product code 915400, 40" deck, serial 000101 and up
- YJ2044: product code 915401, 44" deck, serial 000101 and up
- YJ2348: product code 915402, 48" deck, serial 000101 and up
Do Not Confuse 00191700 With Other PTO Clutch Families
The 00191700 clutch family is not interchangeable with every Ariens, Gravely, Toro, Exmark, or Warner PTO clutch that looks similar in photos. Pulley diameter, bore size, torque rating, pulley offset, connector style, and rotation matter.
00191700 vs. Toro / Exmark 110-6766
The Ariens / Gravely 00191700 family commonly cross-references to Warner 5219-45 and uses a 6.00-inch pulley. The Toro / Exmark 110-6766 family commonly cross-references to Warner 5219-81 and uses a smaller 5.8-inch / 5-13/16-inch pulley. Do not merge these families unless the original clutch number and physical specs confirm the match.
Looking for the Toro / Exmark version? See the Toro Exmark 110-6766 / Warner 5219-81 PTO clutch replacement.
00191700 vs. Ariens / Gravely 04387900
The Ariens / Gravely 04387900 clutch family is a separate 6-inch clutch group with different fitment notes and application data. If your original clutch is marked 04387900 or 4387900, use the dedicated Ariens / Gravely 04387900 listing instead.
00191700 vs. Ariens / Gravely 03972700
The 03972700 clutch family uses a smaller 5-3/8" pulley and fits different Ariens / Gravely model groups. Do not substitute it for 00191700 unless your original clutch number and physical specs confirm the match.
00191700 vs. Warner 5219-19
Warner 5219-19 has been incorrectly grouped with this family in some broad aftermarket lists, but it belongs to a different specification group. Verify bore size and OEM application before ordering.
Common Symptoms of a Failing 00191700 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 system before replacing parts.
- Mower blades will not engage when the PTO switch is activated
- PTO clutch clicks but blades do not spin
- Deck belt does not move when the clutch engages
- Intermittent blade engagement
- Blades slow down or stop under load
- Burning smell from the clutch or belt area
- Squealing, grinding, or bearing noise near the clutch
- PTO clutch gets hot during mowing
- PTO fuse or wiring issues caused by clutch coil failure
- 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 number stamped, engraved, printed, or labeled on your original PTO clutch. If the number is missing, compare the clutch specs and mower details carefully.
- Match the OEM clutch number whenever possible
- Confirm the crankshaft bore is 1 inch
- Confirm the pulley diameter is 6.00 inches
- Confirm CCW rotation from pulley side
- Compare the wiring connector or lead style
- Check the anti-rotation bracket position
- Confirm the mower model, product code, serial number, engine setup, and deck size
- Inspect belt routing and pulley alignment before installation
Not sure where to find the clutch number? Use the PTO clutch fitment guide before ordering.
Before Installing a New PTO Clutch
A replacement PTO clutch can fail early if the mower has belt, pulley, wiring, or deck resistance problems. Before installing the 00191700 replacement, inspect the mower carefully.
- Check the deck belt for glazing, cracks, oil, or wear
- Confirm belt routing around the clutch pulley, idlers, and spindle pulleys
- Make sure blade spindles and idler pulleys 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 installed correctly
Review the PTO clutch installation guide before installing the replacement. If the old clutch will not slide off the crankshaft, see the PTO clutch stuck on crankshaft guide before forcing removal.
Shop 00191700 PTO Clutch Replacement
If your original clutch matches the Ariens / Gravely / EverRide 00191700 replacement family and the core specs line up, shop the 00191700 PTO clutch replacement.
You can also browse the Ariens PTO clutch collection, Gravely PTO clutch collection, or the full electric PTO clutch catalog.
Related OEM Cross-Reference Guides
Related Model Fitment Guides
- Ariens Zoom PTO Clutch Replacement
- Ariens Zoom XL PTO Clutch Replacement
- Ariens Pro-Master PTO Clutch Replacement
- Gravely Pro-Master PTO Clutch Replacement
- Gravely ZT Series PTO Clutch Replacement
Helpful PTO Clutch Resources
- 00191700 PTO Clutch Replacement
- PTO Clutch Fitment Guide
- PTO Clutch Installation Guide
- PTO Clutch Won’t Engage Troubleshooting Guide
- Shop All Electric PTO Clutches
FAQ
What does the 00191700 PTO clutch replace?
The 00191700 PTO clutch commonly replaces Ariens and Gravely number 191700 and cross-references Warner 5219-45, Xtreme X0005, Stens 255-825X, Oregon 33-130, and 8TEN 810-CPT2354O.
What size pulley does the 00191700 clutch use?
The Ariens / Gravely 00191700 clutch family is commonly associated with a 6.00-inch pulley. Confirm the pulley size on your original clutch before ordering.
What crankshaft bore does this clutch use?
This PTO clutch family commonly uses a 1-inch crankshaft bore. Always confirm the bore size on your original clutch before installing a replacement.
What rotation does the 00191700 PTO clutch use?
The 00191700 PTO clutch family commonly uses CCW rotation from the pulley side. Rotation should be confirmed before installation.
Does 00191700 fit Ariens Zoom mowers?
Yes, selected Ariens Zoom models are associated with the 00191700 clutch family, including Zoom 1540, 1640, 1740, 1744, 1840, 1944, 2044, 2148, 2348, 2352, and 2552 models. Product code and serial range still matter, so confirm the original clutch number whenever possible.
Does 00191700 fit Gravely ZT mowers?
Yes, selected Gravely ZT models are associated with this clutch family, including ZT 1540, 1640, 1740, 1840, 1944, 2044, 2148, 2348, 2352, and 2552 references. Verify the OEM clutch number and product details before ordering.
Is 00191700 the same as Toro 110-6766?
No. The Ariens / Gravely 00191700 clutch family commonly cross-references to Warner 5219-45 and uses a 6.00-inch pulley. The Toro / Exmark 110-6766 family commonly cross-references to Warner 5219-81 and uses a smaller 5.8-inch / 5-13/16-inch pulley.
Is 00191700 the same as Ariens / Gravely 04387900?
No. Ariens / Gravely 04387900 is a separate PTO clutch family with different fitment notes and application data. Match the OEM number on your original clutch before ordering.
What if my old PTO clutch will not come off?
If the old clutch is stuck on the crankshaft, stop before forcing it. Rust, burrs, seized hardware, or a tight keyway can bind the clutch in place. See the PTO clutch stuck on crankshaft guide before prying, hammering, or pulling from one side.
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.
Fitment note: PTO Direct USA sells aftermarket replacement parts and is not affiliated with or endorsed by AriensCo, Gravely, EverRide, Encore, World Lawn, Warner Electric, or any original equipment manufacturer. Brand names, model names, and OEM numbers are used for fitment identification only.