AUC15791 PTO Clutch Replacement for John Deere Z335E, Z355E, Z365R | Warner 5219-241

Overview

This AUC15791 PTO clutch replacement is an aftermarket electric PTO clutch for select John Deere Z300 Series ZTrak mower applications.

This clutch replaces John Deere AUC15791 and cross-references Warner 5219-241. It is commonly associated with select John Deere Z335E, Z355E, and Z365R mower applications when the original clutch number, serial range, deck setup, and physical specs match.

Built with a 1-inch crankshaft bore, 5.7-inch pulley diameter, and counter-clockwise rotation, this clutch is designed to restore reliable mower deck blade engagement when matched to the correct mower and original clutch path.

Need help confirming fitment?
Email support@ptodirectusa.com with your mower model number, serial number, original clutch number, and clear photos of the old clutch, wiring connector, pulley, anti-rotation setup, and mower identification tag.

Key Features

• Aftermarket electric PTO clutch replacement for select John Deere Z300 Series ZTrak mowers
• Replaces John Deere: AUC15791
• Cross-references Warner: 5219-241, 5219241
• Crankshaft Bore: 1 inch
• Pulley Diameter: 5.7 inches
• Rotation: CCW from pulley side
• Voltage: 12V DC
• Encapsulated electromagnetic coil for reliable blade engagement
• Fully assembled and ready to install

Compatible Brands & Models

This PTO clutch fits select John Deere Z300 Series ZTrak mower applications that use the AUC15791 / Warner 5219-241 clutch path.

John Deere ZTrak Applications

• John Deere Z335E
• John Deere Z355E - verify serial number before ordering
• John Deere Z365R

Critical fitment note: This AUC15791 / Warner 5219-241 PTO clutch is not interchangeable with every John Deere ZTrak clutch that looks similar. For John Deere Z355E applications, verify the serial number before ordering. This path is reported for Z355E serial number 060001 and higher. Earlier Z355E applications may use a different clutch path such as AM136115. Match the original clutch number when possible. If relying on model information carefully match specs such as pulley diameter, bore size, rotation, connector, and anti-rotation setup before ordering.

Replaces OEM Part Numbers

• John Deere: AUC15791

Cross-Reference Aftermarket Numbers

• Warner: 5219-241, 5219241

Related Fitment Guide

Need more help confirming this replacement path? Read the AUC15791 PTO Clutch Cross-Reference Guide before ordering.

Electrical Testing Notes

A PTO clutch that will not engage is not always a failed clutch. Battery voltage, PTO switch condition, wiring damage, fuse issues, safety switches, and connector corrosion can also prevent blade engagement.

This clutch path is listed with a 3.05-ohm resistance and 3.93-amp current draw. If your old clutch tests far outside the expected resistance range, the coil may be failing. If the clutch tests normally, inspect the PTO switch, wiring, fuse, battery voltage, and safety circuit before replacing parts.

If the clutch does not click, the fuse keeps blowing, the connector is melted, or a new clutch will not engage after installation, use the PTO clutch wiring, fuse, and switch testing guide before replacing parts again.

Common Symptoms of PTO Clutch Failure

• Mower blades will not engage
• PTO clutch clicks but blades do not spin
• Deck engagement is weak or intermittent
• Blades slow down under load
• PTO clutch works cold but fails hot
• Burning smell near the clutch area
• Bearing noise during engagement or shutdown
• Electrical draw or resistance tests outside expected range

A worn PTO clutch coil can work when cold, then weaken after the mower heats up. This can cause weak blade engagement, intermittent operation, slipping under load, or blades slowing down after 10 to 30 minutes of mowing.

What’s Included

• Complete electric PTO clutch assembly
• Factory-balanced 5.7-inch pulley
• Pre-installed bearing assembly
• Encapsulated electromagnetic coil
• Connector and wiring lead as shown in product photos

Before Installing the Replacement

Before installing a new PTO clutch, inspect the mower for problems that can damage the replacement or make a good clutch seem defective.

• Match the original clutch number before ordering
• Confirm mower model and serial number
• Confirm 1-inch crankshaft bore
• Confirm 5.7-inch pulley diameter
• Confirm CCW rotation from pulley side
• Compare wiring connector
• Inspect the deck belt for glazing, cracking, stretching, or contamination
• Check idler pulleys and blade spindles for drag, wobble, or bearing noise
• Inspect the wiring connector for melting, corrosion, or loose terminals
  

Review the PTO clutch installation guide before installing the replacement. If the old clutch will not slide off the crankshaft, stop and read the PTO clutch stuck on crankshaft guide before forcing removal.

Why Buy From PTO Direct USA?

• Fast USA shipping
• Fitment guarantee
• 1-year warranty
• Fitment-first product support
• Clear product images for easier clutch identification
• Trusted replacement supplier for homeowners, repair shops, and mower service professionals

FAQ

Does AUC15791 replace Warner 5219-241?

Yes. The AUC15791 replacement path cross-references Warner 5219-241. Always confirm the original clutch number, mower model, serial number, bore size, pulley diameter, rotation, connector, and anti-rotation setup before ordering.

Related Warner guide: Warner 5219-241 PTO Clutch Cross-Reference Guide

What John Deere models use AUC15791?

AUC15791 is commonly associated with select John Deere Z300 Series ZTrak mowers including Z335E, Z355E, and Z365R applications. Fitment can vary by serial number and production range, so confirm the original clutch number before ordering.

Does this fit John Deere Z355E?

This clutch path is reported for John Deere Z355E serial number 060001 and higher. Earlier Z355E applications may use a different clutch path such as AM136115. Verify your mower serial number before ordering.

Is AUC15791 the same as AM136115?

No. Do not treat AUC15791 and AM136115 as universal replacements. They belong to different clutch paths and may split by serial range on some Z355E applications.

Is AUC15791 the same as AM141536?

No. AUC15791 is not the same replacement path as AM141536. The pulley diameter, fitment family, and mower applications can differ.

What bore size does AUC15791 use?

This clutch uses a 1-inch crankshaft bore. Confirm your crankshaft size before installing the replacement.

What pulley diameter does this clutch use?

This clutch is listed with a 5.7-inch pulley diameter. Compare the pulley size and offset against your original clutch before ordering.

What rotation does Warner 5219-241 use?

Warner 5219-241 uses counter-clockwise rotation, commonly written as CCW, from the pulley side.

What resistance should this clutch test at?

This clutch path is listed with a 3.05-ohm resistance value. Electrical testing should be used as one diagnostic clue along with battery voltage, wiring condition, PTO switch condition, fuse condition, and connector inspection.

Can PTO Direct USA help confirm fitment?

Yes. Email support@ptodirectusa.com with your mower model number, serial number, deck size, original clutch number, and clear photos of the old clutch. For best fitment help, include photos of the clutch label or stamped number, wiring connector, pulley, anti-rotation setup, crankshaft area, and mower identification tag.

Need a different John Deere clutch? Browse the John Deere PTO clutch collection or the full electric PTO clutch catalog.