Overview
If you're trying to find the correct Bobcat PTO clutch replacement, the safest place to start is the original clutch number on your mower. Bobcat, Bob-Cat, Bunton, Woods, and related commercial mower platforms can use similar-looking PTO clutches that are not interchangeable.
The two most common Bobcat clutch paths in this guide are 2721337 and 2722016. Both may share a 1-1/8 inch bore, 6-5/16 inch pulley, 5/8 inch belt, and CW rotation, but they use different torque ratings, electrical loads, connector styles, and application rules.
Use this guide to route by part number, Warner reference, engine horsepower, model family, wiring setup, and physical specs before ordering.
Quick Bobcat PTO Clutch Routing
| Clutch Path | Warner Reference | Torque | Common Route | Product |
|---|---|---|---|---|
| 2721337 | 5218-213, 5218-65, 5218-65E | 200 ft-lbs | Select 20HP+ Bobcat commercial applications | Shop 2721337 |
| 2722016 | 5219-14 | 125 ft-lbs | Many 19HP Bobcat applications, Bunton Estate, Woods ME/MZ/RZ, and related platforms | Shop 2722016 |
Important: do not choose between these clutches by appearance alone. Match the original clutch number first, then verify engine horsepower, bore size, pulley diameter, belt width, rotation, connector style, pigtail setup, and anti-rotation bracket.
2721337 Route
The 2721337 path is the heavy-duty Bobcat route commonly tied to higher-horsepower commercial mower applications.
- Bobcat / Bob-Cat: 2721337
- Bunton: 2721337
- Warner: 5218-213
- Legacy Warner: 5218-65, 5218-65E
- Torque Rating: 200 ft-lbs
- Common Use: select Bobcat ProCat, Predator Pro, and ZT200 applications with 20HP-and-higher engines
Need the part-number details? Read the 2721337 Guide.
2722016 Route
The 2722016 path is the lower-torque Bobcat route commonly tied to 19HP applications and several related commercial mower families.
- Bobcat / Bob-Cat: 2722016
- Bunton: 2722016
- Woods: select ME, MZ, and RZ applications
- Warner: 5219-14
- Torque Rating: 125 ft-lbs
- Common Use: many Bobcat 19HP applications, Bunton Estate models, Woods applications, and select walk-behind platforms
Trying to decide between the two paths? Read the 2721337 vs 2722016 Guide.
The 19HP Split
The most important routing rule in this Bobcat clutch family is the 19HP split.
- 19HP Bobcat applications: commonly route to 2722016 / Warner 5219-14
- 20HP and higher Bobcat commercial applications: commonly route to 2721337 / Warner 5218-213
If your Bobcat mower has a 19HP engine, do not automatically order the 2721337 clutch. Many 19HP Bobcat applications require the 2722016 path instead.
If your Bobcat mower uses a 20HP, 22HP, 26HP, 27HP, 33HP, or 37HP engine and the original clutch number routes to 2721337, the lower-torque 2722016 should not be treated as a substitute.
Bobcat Model-Family Routing
Use model family as a starting point only. Final fitment should be confirmed by the original clutch number, engine horsepower, deck size, wiring setup, and physical clutch specs.
Bobcat ProCat
Many select Bobcat ProCat commercial applications route to the 2721337 / Warner 5218-213 path. This includes higher-horsepower ProCat machines with larger commercial decks.
Bobcat Predator Pro
Many select Bobcat Predator Pro applications route to the 2721337 / Warner 5218-213 path, especially high-horsepower machines with 61-inch and 72-inch commercial decks.
Bobcat ZT200 Series
The ZT200 series is a common fitment-confusion area. Some higher-horsepower ZT200 applications route to 2721337, while 19HP variants commonly route to 2722016.
- Common 2721337 direction: select 20HP-and-higher ZT200 applications
- Common 2722016 direction: ZT219 and selected 19HP ZT218ES configurations
Do not order for a ZT200 machine by series name alone. Confirm the original clutch tag and engine horsepower.
Bobcat 942223A Warning
Bobcat 942223A is a known fitment-confusion point. Higher-horsepower configurations may route to 2721337, but 19HP variants or closely related chassis paths may require 2722016 instead.
For this reason, 942223A should not be used as the only fitment check. Confirm the original clutch number, engine horsepower, Warner number, connector style, and physical specs.
Bobcat DX, LEO, Walk-Behind, Bunton, and Woods Applications
The 2722016 / Warner 5219-14 path is commonly associated with many lighter or standard-duty commercial applications, including selected Bobcat DX, LEO, LEO Plus, walk-behind, Bunton Estate, Woods ME, Woods MZ, and Woods RZ models.
These applications should still be confirmed by original clutch number and physical specs before ordering.
Warner Cross-Reference Routing
Many Bobcat PTO clutch searches start with a Warner number stamped on the old clutch. Use the Warner number to identify the correct route.
| Warner Number | Routes To | Notes |
|---|---|---|
| 5218-213 | 2721337 | Heavy-duty 200 ft-lb route |
| 5218-65 | 2721337 | Legacy Warner reference |
| 5218-65E | 2721337 | Legacy Warner reference |
| 5219-14 | 2722016 | Standard-duty 125 ft-lb route |
For more detail on the heavy-duty Warner route, read the Warner 5218-213 Guide.
2721337 vs 2722016 Specification Comparison
| Specification | 2721337 | 2722016 |
|---|---|---|
| Warner Number | 5218-213 | 5219-14 |
| Crankshaft Bore | 1-1/8 inch | 1-1/8 inch |
| Pulley Diameter | 6-5/16 inch / approximately 6.31 inches | 6-5/16 inch / approximately 6.31 inches |
| Belt Width | 5/8 inch | 5/8 inch |
| Rotation | CW from pulley side | CW from pulley side |
| Voltage | 12V DC | 12V DC |
| Torque Rating | 200 ft-lbs | 125 ft-lbs |
| Electrical Draw | Approximately 6.53 amps | Approximately 4.23 amps |
| Coil Resistance | Approximately 1.84 ohms | Approximately 2.84 ohms |
| Connector Style | External pigtail / harness setup | Integral molded connector |
| Common Bobcat Direction | 20HP+ commercial applications | 19HP and lighter applications |
The two clutches can look similar from the outside, but the torque rating and electrical characteristics are different. Do not substitute one for the other unless the original clutch number and application confirm the route.
2720949 Pigtail and Wiring Warning
Many Bobcat applications using the 2721337 path rely on an external pigtail harness. The Bobcat pigtail commonly associated with this route is 2720949.
Before replacing the PTO clutch, inspect the wiring for:
- Melted insulation near the clutch
- Green corrosion inside terminals
- Brittle or cracked connector housings
- Loose terminals
- Short or stretched wiring
- Previous splices or non-OEM repairs
- Low voltage at the clutch connector
A weak or damaged pigtail can reduce voltage to the clutch coil. That can make a correct new clutch slip, run hot, or fail early.
Exmark and Hustler Cross-Reference Caution
The 2721337 / Warner 5218-213 clutch path may physically overlap with several Exmark and Hustler clutch numbers.
- Exmark: 103-0665, 1-641300
- Hustler: 787366, 787366K
These may share the same physical clutch-body family, but wiring harness length, connector style, polarity, pigtail routing, and kit contents can vary by mower brand and model.
Bobcat buyers should order by the Bobcat clutch path and verify the original connector and pigtail setup. Exmark and Hustler buyers should retain and verify their brand-specific wiring harness before assuming plug-and-play fitment.
Do Not Confuse With Bobcat 2721110
Do not confuse 2721337 or 2722016 with Bobcat 2721110. The 2721110 path is a different clutch route.
| Part Number | Bore | Pulley | Rotation |
|---|---|---|---|
| 2721337 | 1-1/8 inch | 6-5/16 inch | CW |
| 2722016 | 1-1/8 inch | 6-5/16 inch | CW |
| 2721110 | 1 inch | 7-inch class | CCW |
If your original clutch has a 1-inch bore, larger 7-inch class pulley, or CCW rotation, this 2721337 / 2722016 routing guide is not the correct replacement path.
Common Symptoms of a Failing Bobcat PTO Clutch
- Blades will not engage
- PTO switch clicks but deck does not start
- Blades engage cold but stop when hot
- Clutch slips under mowing load
- Fuse blows when PTO is switched on
- Burning smell near the clutch or deck belt
- Melted pigtail or connector near the clutch
- Deck belt smokes, jumps, or loses tension
- Bearing noise below the engine crankshaft
- Deck engagement feels weak or delayed
Some PTO clutch symptoms are caused by weak voltage, a damaged pigtail, bad PTO switch, poor ground, seized idlers, worn spindle bearings, or incorrect belt tension. Test the system before replacing the clutch alone.
Before Ordering
Before ordering a Bobcat PTO clutch replacement, confirm:
- Original clutch number stamped on the clutch tag
- Warner number, if visible
- Mower model number and serial number
- Deck size
- Engine horsepower
- Whether your mower is a 19HP variant
- Crankshaft bore size
- Pulley diameter
- Belt width
- Rotation from pulley side
- Connector style
- Pigtail or harness setup
- Anti-rotation bracket or clutch stop
- Deck belt path and pulley alignment
- Battery voltage, PTO switch output, and wiring condition
Installation Notes
A correct PTO clutch can fail early if it is installed on a damaged crankshaft, wired through a weak connector, or paired with a dragging deck system.
- Clean the crankshaft before installation.
- Inspect the keyway and woodruff key.
- Replace a worn, mushroomed, or damaged key.
- Do not force the clutch over a burred crankshaft.
- Do not use an impact wrench on the center crankshaft bolt.
- Use a torque wrench and follow the engine manufacturer's crankshaft bolt specification.
- Confirm the clutch stop or anti-rotation bracket is aligned correctly.
- Inspect the pigtail or connector before startup.
- Check battery voltage and PTO switch output at the clutch connector.
- Burnish the clutch before mowing under full load.
To burnish the clutch, engage and disengage the PTO several times at reduced engine speed without cutting grass. This helps seat the rotor and armature friction surfaces before full-load mowing.
Related Bobcat Guides
- 2721337 Guide
- Warner 5218-213 Guide
- 2721337 vs 2722016 Guide
- ProCat Fitment Guide
- Predator Pro Fitment Guide
Related Product Pages
FAQ
How do I know which Bobcat PTO clutch I need?
Start with the original clutch number stamped on your old clutch. Then verify the Warner number, engine horsepower, bore size, pulley diameter, belt width, rotation, connector style, pigtail setup, and anti-rotation bracket.
What is the difference between Bobcat 2721337 and 2722016?
The 2721337 path is a 200 ft-lb heavy-duty clutch commonly tied to 20HP-and-higher commercial Bobcat applications. The 2722016 path is a 125 ft-lb clutch commonly tied to many 19HP and lighter applications.
Which Warner number replaces Bobcat 2721337?
Bobcat 2721337 commonly cross-references to Warner 5218-213. Legacy Warner references include 5218-65 and 5218-65E.
Which Warner number replaces Bobcat 2722016?
Bobcat 2722016 commonly cross-references to Warner 5219-14.
Does a 19HP Bobcat use 2721337 or 2722016?
Many 19HP Bobcat applications use the 2722016 / Warner 5219-14 path. Do not order 2721337 for a 19HP application unless the original clutch number clearly confirms that route.
Does Bobcat ProCat use 2721337?
Many select Bobcat ProCat commercial applications route to 2721337 / Warner 5218-213. Confirm the original clutch number, engine horsepower, deck size, connector style, and pigtail setup before ordering.
Does Bobcat Predator Pro use 2721337?
Many select Bobcat Predator Pro commercial applications route to 2721337 / Warner 5218-213, especially high-horsepower machines with larger commercial decks. Confirm the original clutch number before ordering.
Can I use 2721337 instead of 2722016?
No, not unless your original clutch number confirms the 2721337 path. The 2721337 draws more current and is rated for higher torque, so it should not be substituted into a mower designed for the 2722016 path.
Can I use 2722016 instead of 2721337?
No, not unless your original clutch number confirms the 2722016 path. A lower-torque clutch used where a 200 ft-lb clutch is required can slip, overheat, and fail early.
Is Bobcat 2721110 the same as 2721337 or 2722016?
No. Bobcat 2721110 is a different clutch path with different bore, pulley, and rotation requirements. Do not substitute 2721110 for either 2721337 or 2722016.
Where can I buy the correct Bobcat PTO clutch replacement?
Shop the 2721337 Replacement or shop the 2722016 Replacement.
Need help confirming Bobcat fitment? Contact PTO Direct USA with your mower model number, serial number, engine horsepower, deck size, original clutch number, Warner number if visible, and clear photos of the clutch label, connector, pigtail, pulley, anti-rotation bracket, and mower ID tag before ordering.