Hustler Mini Z & Super Mini Z PTO Clutch Quick Reference
The most common PTO clutch path for Hustler Mini Z 44-inch and 52-inch and Hustler Super Mini Z 44-inch and 52-inch mowers is:
- Hustler clutch: 601311
- Hustler clutch-kit path: 601311K
- Warner clutch: 5218-222
- Earlier Warner clutch: 5218-154
View the 601311 / 601311K PTO clutch replacement.
Do not order from the Mini Z or Super Mini Z name alone. Some older Hustler model paths use different OEM clutch numbers, including 781039 and 787408. Similar-looking Hustler clutches may share the same bore, pulley diameter, rotation, and mounting orientation while still following different OEM and installation-hardware paths.
Quick Mini Z PTO Clutch Routing
| Mower Path | Hustler Numbers | Warner Path | Main Specifications | PTO Direct Route |
|---|---|---|---|---|
| Mini Z 44 and 52 inch Super Mini Z 44 and 52 inch |
601311 601311K |
5218-222 Earlier 5218-154 |
1-1/8-inch bore 6.31-inch pulley CW from pulley side Reverse mount |
View 601311 PTO Clutch |
| Select older Mini Z Series applications |
781039 781039K 787408 |
5218-110 family Verify current replacement by model |
Do not route from dimensions alone | View 781039 PTO Clutch |
| Separate ATZ, Z XR-7, Super Z XR-7, TrimStar, X-One and Z4 path |
787366 787366K |
5218-219 Earlier 5218-110 |
1-1/8-inch bore 6.31-inch pulley CW from pulley side Reverse mount |
View 787366 PTO Clutch |
Routing rule: Match the OEM Hustler clutch number from the mower-specific parts diagram first. Use bore size, pulley diameter, rotation, connector, mounting orientation, pulley offset, and anti-rotation hardware as confirmation checks.
601311 / 601311K PTO Clutch Path
The 601311 clutch path is the primary replacement route for select:
- Hustler Mini Z 44-inch mowers
- Hustler Mini Z 52-inch mowers
- Hustler Super Mini Z 44-inch mowers
- Hustler Super Mini Z 52-inch mowers
- Big Dog X-Series mowers using the same OEM clutch path
View the 601311 / 601311K PTO clutch.
601311 Reference Numbers
- Hustler: 601311
- Hustler Clutch Kit: 601311K
- Big Dog: 601311, 601311K
- Warner: 5218-222
- Earlier Warner: 5218-154
- Xtreme: X0222, X0222-K
601311 Reference Specifications
- Voltage: 12 VDC
- OEM Warner Reference Torque: 200 ft-lbs
- Crankshaft Bore: 1-1/8 inch with standard keyway
- Pulley Diameter: approximately 6.31 inch
- Rotation: CW from pulley side
- Mounting Style: reverse mount
- Electrical Connection: integral connection
Warner identifies 5218-222 as the replacement for the earlier 5218-154 clutch.
What Is the Difference Between 601311 and 601311K?
601311 identifies the clutch assembly. The 601311K number identifies the related Hustler clutch-kit path.
Depending on the OEM package and production revision, a complete kit may include supporting wiring, mounting, or installation components beyond the clutch itself.
An aftermarket clutch sold as a 601311 replacement should not be assumed to include every component found in a genuine 601311K kit.
Before ordering or installing, inspect:
- The mower-side wiring harness
- The clutch connector or pigtail
- The crankshaft key
- The retaining bolt and washer
- The anti-rotation bracket or anchor
- Any mower-specific spacers or washers
Older 781039 / 787408 Mini Z Path
Some replacement catalogs identify select older Hustler Mini Z Series applications under the separate:
- Hustler 781039
- Hustler 781039K
- Hustler 787408
- Warner 5218-110
Do not automatically substitute 601311 for one of these numbers. Verify the complete six-digit mower model and the clutch number shown in the official Hustler parts manual.
Although the published replacement specifications may appear similar, the OEM number, clutch package, mounting hardware, anti-rotation arrangement, or production application can differ.
If the original clutch label shows 781039, 787408, or 5218-110, use that number as the starting point rather than ordering from the Mini Z name alone.
601311 vs. 787366
Hustler 601311 and Hustler 787366 should remain separate OEM clutch paths.
| Reference | 601311 Path | 787366 Path |
|---|---|---|
| Hustler Number | 601311 / 601311K | 787366 / 787366K |
| Warner Number | 5218-222 | 5218-219 |
| Earlier Warner Number | 5218-154 | 5218-110 |
| Common Mower Route | Mini Z 44/52 Super Mini Z 44/52 |
ATZ, Z XR-7, Super Z XR-7, selected TrimStar, X-One and Z4 |
| Bore | 1-1/8 inch | 1-1/8 inch |
| Pulley | Approximately 6.31 inch | Approximately 6.31 inch |
| Rotation | CW from pulley side | CW from pulley side |
| Mounting | Reverse | Reverse |
The shared bore, pulley size, rotation, and mounting classification do not prove that the two OEM paths are interchangeable.
Match the original Hustler number, complete mower model, clutch connector, pulley offset, clutch height, anti-rotation geometry, and required installation hardware before considering any substitution.
Do Not Confuse Mini Z with Raptor PTO Clutch Paths
The Hustler Raptor and Raptor SD families use different PTO clutch numbers. Two common examples are:
- 605777 / 605777K: Warner 5219-191, 1-1/8-inch bore, 6-inch pulley, CCW rotation and standard mounting
- 605827 / 605827K: separate Raptor clutch path used on other six-digit mower models
View the 605777 / 605777K clutch for supported Raptor SD applications.
Do not install a Raptor clutch on a Mini Z merely because both mowers are Hustler zero-turn machines. The pulley diameter, rotation, mounting orientation, torque path, wiring, and mower application differ.
Do Not Confuse Mini Z with the 603545 Path
The 603545 / 601325 / Warner 5219-90 clutch path is associated with select:
- Hustler TrimStar mowers
- Hustler Mini FasTrak mowers
- Hustler FasTrak Super Duty 36- and 42-inch applications
- Big Dog T-Series mowers
View the 603545 / 601325 PTO clutch path.
That clutch uses a 1-inch crankshaft bore, approximately 6.28-inch pulley, CCW rotation, and standard mounting. It is physically different from the 601311 Mini Z clutch.
How to Confirm a Hustler Mini Z PTO Clutch
Use this order of operations:
- Locate the six-digit mower model number on the Hustler identification plate.
- Enter that model number into the official Hustler Parts & Manuals Lookup.
- Open the matching parts manual.
- Locate the engine, clutch, pulley, or electrical-system diagram.
- Record the complete Hustler clutch or clutch-kit number.
- Read the Warner number from the original clutch label when possible.
- Confirm the crankshaft bore with a direct measurement.
- Measure the pulley outside diameter.
- Compare the pulley offset and overall clutch height.
- Compare the electrical connector and wire direction.
- Inspect the anti-rotation bracket, anchor, and surrounding clearance.
Do not order by appearance alone. Similar-looking Hustler clutches can have different rotation, mounting orientation, bore size, pulley diameter, electrical connection, torque capacity, or OEM application.
Common Mini Z Ordering Mistakes
- Ordering from the Mini Z name without checking the six-digit model number
- Assuming every Mini Z 44-inch mower uses the same clutch
- Assuming every Mini Z 52-inch mower uses the same clutch
- Treating 601311 and 787366 as the same OEM part
- Ignoring an original 781039 or 787408 clutch number
- Ordering a Raptor 605777 clutch for a Mini Z
- Using only the incomplete Warner family number “5218”
- Matching only the 1-1/8-inch crankshaft bore
- Failing to compare pulley offset and mounting height
- Failing to inspect the connector and anti-rotation hardware
Need Help Confirming Fitment?
Send PTO Direct USA the complete six-digit Hustler mower model, serial number, deck size, engine model, and original clutch number.
Include clear photos of:
- The mower identification plate
- The complete original clutch label
- The keyed crankshaft bore
- The clutch pulley and belt groove
- The electrical connector
- The mounting orientation
- The anti-rotation bracket or clutch anchor
When the original label is unreadable, include measurements for the bore, pulley diameter, pulley offset, and overall clutch height.
FAQ
What PTO clutch fits a Hustler Mini Z?
Select Hustler Mini Z 44- and 52-inch mowers use the 601311 / 601311K clutch path. Other older Mini Z applications may use a separate number such as 781039 or 787408. Confirm the complete six-digit mower model through the official Hustler parts lookup.
What PTO clutch fits a Hustler Super Mini Z?
Select Super Mini Z 44- and 52-inch applications use Hustler 601311 or 601311K, which cross-reference Warner 5218-222 and the earlier 5218-154.
What Warner clutch crosses to Hustler 601311?
The primary Warner cross-reference is 5218-222. Warner identifies 5218-222 as the replacement for the earlier 5218-154 clutch.
What is the difference between 601311 and 601311K?
601311 identifies the PTO clutch assembly. The 601311K number identifies the related clutch-kit path. Supporting hardware or wiring included with an OEM kit may not be included with an aftermarket clutch assembly.
Does 601311 fit Mini Z 44-inch mowers?
It fits select Mini Z 44-inch applications. Confirm the six-digit model number and the clutch number shown in the official Hustler parts diagram.
Does 601311 fit Mini Z 52-inch mowers?
It fits select Mini Z 52-inch applications. Do not rely on deck size alone because older production paths may use another clutch number.
Is Hustler 787366 the same as 601311?
No. Hustler 787366 follows the Warner 5218-219 path, while Hustler 601311 follows the Warner 5218-222 path. Keep the OEM numbers separate unless the exact mower parts diagram and replacement supplier confirm the substitution.
Does Warner 5218-219 replace Warner 5218-110?
Yes. Warner identifies 5218-219 as a replacement for the earlier 5218-110 clutch. The mower’s original Hustler number and installation arrangement still need to be confirmed.
What if the original clutch says 781039?
Do not automatically order 601311. The 781039 and 787408 numbers are associated with a separate older Mini Z clutch path. Use the mower’s six-digit model number in the Hustler parts lookup.
Is 605777 the same clutch as 601311?
No. Hustler 605777 follows the Warner 5219-191 Raptor and Raptor SD path. It uses a different pulley diameter, rotation, and mounting orientation from the 601311 Mini Z clutch.
Is 603545 the same clutch as 601311?
No. The 603545 / 601325 / Warner 5219-90 path uses a 1-inch bore, CCW rotation, and standard mounting. The 601311 path uses a 1-1/8-inch bore, CW rotation, and reverse mounting.
Does reverse mount change the listed rotation?
No. Reverse mount describes the clutch’s installation orientation. The 601311 / Warner 5218-222 path remains CW when viewed from the pulley side.
Can I order a Hustler PTO clutch by appearance?
No. Match the OEM clutch number first, then confirm the six-digit mower model, bore, pulley diameter, rotation, mounting orientation, connector, pulley offset, anti-rotation hardware, and serial number.