Bobcat 2721337 vs 2722016 PTO Clutch Guide

Bobcat 2721337 vs 2722016 PTO clutch guide featured image comparing the 2721337 Warner 5218-213 200 ft-lb route with the 2722016 Warner 5219-14 125 ft-lb route.

Overview

If you're comparing Bobcat 2721337 and Bobcat 2722016, do not choose by appearance alone. These two PTO clutches can share similar outside dimensions, but they are different clutch paths with different torque ratings, electrical demands, connector setups, and application rules.

The simplest routing rule is this: many 19HP Bobcat applications use the 2722016 / Warner 5219-14 path, while many 20HP-and-higher Bobcat commercial applications use the 2721337 / Warner 5218-213 path.

Always match the original clutch number first. Then confirm engine horsepower, crankshaft bore, pulley diameter, belt width, rotation, connector style, pigtail setup, mower model, serial number, and anti-rotation bracket before ordering.

Quick Answer

If Your Mower Has Most Common Clutch Path Warner Path
19HP Bobcat application 2722016 5219-14
20HP+ Bobcat commercial application 2721337 5218-213
ProCat commercial application Usually 2721337, select applications only 5218-213
Predator Pro commercial application Usually 2721337, select applications only 5218-213
Bunton Estate / Woods ME, MZ, or RZ path Often 2722016, verify original clutch 5219-14

2721337 PTO Clutch Route

The 2721337 path is the heavy-duty Bobcat route. It is commonly associated with larger commercial zero-turn applications, higher engine horsepower, and heavier cutting decks.

  • Bobcat / Bob-Cat: 2721337
  • Bunton: 2721337
  • Warner: 5218-213
  • Legacy Warner: 5218-65, 5218-65E
  • Torque Rating: 200 ft-lbs
  • Typical Route: Bobcat 20HP-and-higher commercial applications
  • Connector Note: commonly uses an external pigtail / harness setup

Shop the 2721337 Replacement

Need the part-number route? See the 2721337 Guide.

2722016 PTO Clutch Route

The 2722016 path is the lower-torque route commonly tied to 19HP Bobcat applications, selected walk-behind platforms, Bunton Estate applications, and Woods ME, MZ, or RZ series applications.

  • Bobcat / Bob-Cat: 2722016
  • Bunton: 2722016
  • Woods: select ME, MZ, and RZ applications
  • Warner: 5219-14
  • Torque Rating: 125 ft-lbs
  • Typical Route: Bobcat 19HP and lighter applications
  • Connector Note: commonly uses an integral molded connector

Shop the 2722016 Replacement

2721337 vs 2722016 Specification Comparison

Specification 2721337 2722016
Warner Number 5218-213 5219-14
Legacy Warner Numbers 5218-65, 5218-65E Not the same path
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 belt 5/8 inch belt
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 Route 20HP+ commercial applications 19HP applications

The bore and pulley size can make these two clutches look interchangeable. They are not interchangeable by appearance. The torque rating, electrical draw, and connector setup matter.

The 19HP Rule

The most important difference between these two Bobcat clutch paths 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 mower has a 19HP engine, do not order the 2721337 unless your original clutch number clearly confirms that path. Many 19HP Bobcat applications require 2722016 instead.

If your mower has a 20HP, 22HP, 26HP, 27HP, 33HP, or 37HP engine, and the original clutch number routes to 2721337, the lower-torque 2722016 is not the correct substitute.

Why the Two Clutches Should Not Be Swapped

Installing the wrong clutch can create either a mechanical problem or an electrical problem.

If a 2722016 Is Installed Where 2721337 Is Required

The 2722016 is a lower-torque 125 ft-lb clutch. If installed on a mower designed for the 200 ft-lb 2721337 path, it may physically slide onto the crankshaft but fail under deck load.

Possible problems include:

  • Clutch slipping under heavy mowing load
  • Excessive heat buildup
  • Burned friction surfaces
  • Premature bearing failure
  • Deck belt smoking or slipping
  • New clutch failing shortly after installation

If a 2721337 Is Installed Where 2722016 Is Required

The 2721337 draws more current than the 2722016. If installed on a mower wired for the lower-amp clutch path, it can overload the PTO circuit.

Possible problems include:

  • Blown fuses
  • Overheated PTO switch
  • Melted wiring or connectors
  • Relay or harness damage
  • Intermittent clutch engagement
  • Electrical failure that looks like a bad clutch

ZT200 Series Fitment Warning

The Bobcat ZT200 family is one of the easiest places to order the wrong clutch. Some ZT200 applications route to 2721337, while 19HP variants route to 2722016.

Common 2721337 ZT200 Routes

  • ZT200 Series: select 942203, 942204, and 942206 applications
  • ZT220D: select higher-horsepower applications
  • ZT225: select higher-horsepower applications
  • ZT226ES: select higher-horsepower applications
  • ZT227: select higher-horsepower applications

Common 2722016 ZT200 Routes

  • ZT219: common 19HP path
  • 942220A and 942220E: common 19HP path
  • ZT218ES: selected 19HP configurations
  • 942218E and 942218F: selected 19HP Kawasaki configurations

Use the model number as a starting point only. Confirm the original clutch tag and the engine horsepower before ordering.

Bobcat 942223A Warning

Bobcat 942223A is a common fitment-confusion point. Higher-horsepower 942223A applications may route to the 2721337 path, but a 19HP variant or closely related chassis may require 2722016 instead.

Do not order a PTO clutch for 942223A by model number alone. Confirm:

  • Original clutch part number
  • Engine horsepower
  • Warner number on the old clutch, if visible
  • Connector and pigtail style
  • Crankshaft bore and pulley size

Connector and Pigtail Differences

One of the biggest visual differences between these paths is the connector setup.

2721337 Connector Setup

The 2721337 / Warner 5218-213 path commonly uses an external pigtail or harness setup. Bobcat applications often reference the 2720949 pigtail.

Inspect the pigtail for:

  • Melted insulation
  • Green corrosion
  • Brittle connector plastic
  • Loose terminals
  • Short or stretched leads
  • Previous splices or non-OEM repairs

2722016 Connector Setup

The 2722016 / Warner 5219-14 path commonly uses an integral molded connector built into the clutch coil housing.

Before ordering, compare the connector style on your old clutch to the replacement path. A clutch that fits the crankshaft can still be wrong if the connector and wiring setup do not match.

2722016 Cross-Reference Notes

The 2722016 path is commonly searched under Warner and aftermarket replacement numbers.

  • Warner: 5219-14
  • Xtreme: X0063
  • Stens: 255-455
  • Oregon: 33-132
  • 8TEN: 810-CPT2218O
  • Prime Line / Ransomes: 7-06290

Important pulley note: some aftermarket references for the X0063 path have shown a 6.00-inch pulley listing, while the Warner / Bobcat 2722016 path is commonly treated as a 6-5/16 inch / approximately 6.31-inch pulley route. Measure your original pulley before ordering if your replacement listing shows a different pulley diameter.

Do Not Confuse Either Path With Bobcat 2721110

Do not confuse 2721337 or 2722016 with Bobcat 2721110. That 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 uses a 1-inch bore or CCW rotation, neither 2721337 nor 2722016 is the correct path.

Buy the Correct Replacement

If your original clutch is marked 2721337, Warner 5218-213, 5218-65, or 5218-65E, start with the 2721337 path.

Shop the 2721337 PTO Clutch Replacement

If your original clutch is marked 2722016 or Warner 5219-14, start with the 2722016 path.

Shop the 2722016 PTO Clutch Replacement

Before Ordering

Before ordering either Bobcat PTO clutch, confirm:

  • Original clutch number stamped on the clutch or label
  • Warner number, if visible
  • Mower model number and serial number
  • Engine horsepower
  • Whether the mower is a 19HP variant
  • 1-1/8 inch crankshaft bore
  • 6-5/16 inch pulley diameter
  • 5/8 inch belt width
  • CW 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

Common Symptoms of PTO Clutch Failure

  • Blades will not engage
  • PTO switch clicks but the deck does not start
  • Clutch slips under load
  • Blades engage cold but stop when hot
  • Fuse blows when PTO is switched on
  • Connector or pigtail melts near the clutch
  • Burning smell near the clutch or belt
  • Deck belt smokes, jumps, or loses tension
  • Bearing noise below the engine

Electrical problems can mimic PTO clutch failure. Test voltage at the clutch connector before replacing the clutch, especially if the old pigtail, PTO switch, or wiring harness shows heat damage.

Installation Notes

  • Clean the crankshaft before installing the replacement clutch.
  • Inspect the crankshaft 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 correctly positioned.
  • Check the pigtail or connector before startup.
  • Burnish the new clutch before mowing under 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

FAQ

What is the main difference between Bobcat 2721337 and 2722016?

The 2721337 path is a 200 ft-lb clutch commonly tied to 20HP-and-higher commercial Bobcat applications. The 2722016 path is a 125 ft-lb clutch commonly tied to 19HP and lighter applications.

Can I use 2722016 instead of 2721337?

No, not unless your original clutch number and application confirm the 2722016 path. The 2722016 may have similar bore and pulley dimensions, but it has a lower torque rating and different electrical characteristics.

Can I use 2721337 instead of 2722016?

No, not unless your original clutch number and application confirm the 2721337 path. The 2721337 draws more current and can overload a mower electrical system designed for the 2722016 clutch path.

Which clutch fits 19HP Bobcat models?

Many 19HP Bobcat applications route to 2722016 / Warner 5219-14. Verify the original clutch number before ordering.

Which clutch fits 20HP and higher Bobcat models?

Many 20HP-and-higher Bobcat commercial applications route to 2721337 / Warner 5218-213. Verify the original clutch number, engine horsepower, and connector setup before ordering.

Does Bobcat 942223A use 2721337 or 2722016?

Bobcat 942223A can be a fitment-confusion point. Higher-horsepower applications may route to 2721337, while 19HP variants or closely related chassis may require 2722016. Do not order by model number alone.

Are 2721337 and 2722016 the same because both use a 1-1/8 inch bore?

No. They may share bore and pulley dimensions, but they differ in torque rating, electrical draw, coil resistance, connector setup, and application routing.

Is Bobcat 2721110 part of this same clutch path?

No. Bobcat 2721110 is a different clutch route with a 1-inch bore, larger pulley, and CCW rotation. Do not substitute it for 2721337 or 2722016.

Where can I buy the correct Bobcat PTO clutch?

Shop the 2721337 PTO Clutch Replacement or shop the 2722016 PTO Clutch 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.