TCA24446 PTO Clutch for John Deere Z915E 60-Inch | Warner 5218-338
Overview
This TCA24446 electric PTO clutch is used on select John Deere Z900 Series commercial ZTrak mowers, including the John Deere Z915E with a 60-inch mower deck.
The clutch follows the John Deere TCA24446, John Deere TCA22416, and Warner 5218-338 replacement path. The third-party listing identifies the product as Rotary item 17271 and shows a Warner Electric 5218-338 clutch.
This commercial-duty clutch uses a 1-1/8-inch keyed crankshaft bore, an approximately 6.62-inch pulley, CCW rotation from the pulley side, standard mounting, an integral electrical connection, and a 12 VDC clutch-and-brake system.
This is an affiliate listing. The product is sold and fulfilled by a third-party seller. Current price, availability, shipping, returns, warranty coverage, and package contents are controlled by that seller and may change.
Key Features
- Commercial-duty electric PTO clutch and brake assembly
- Primary John Deere Number: TCA24446
- Earlier John Deere Number: TCA22416
- Warner Cross-Reference: 5218-338, 5218338
- Earlier Warner Number: 5218-312, 5218312
- Rotary Catalog Number: 17271
- Voltage: 12 VDC
- Rated Torque: 200 ft-lbs
- Crankshaft Bore: 1-1/8 inch / 1.125 inch with standard keyway
- Pulley Diameter: approximately 6.62 inch
- Rotation: CCW from pulley side
- Mounting Style: standard mount
- Connection Type: integral electrical connection
- Clutch Type: electric PTO clutch with integrated brake
- Designed for heavy-duty commercial mower applications
- Complete assembled clutch with no routine air-gap adjustment required
Compatible Brands & Model Series
This PTO clutch should be treated as a part-number-first, deck-specific, and serial-specific replacement. Confirm that the mower parts diagram identifies TCA24446 or that the original clutch is marked 5218-338 or 5218-312.
John Deere Z915E Applications
- John Deere Z915E with 60-inch deck: TCA24446 clutch path
- 2018 John Deere Z915E with original 60-inch deck: expected TCA24446 clutch path; confirm the mower PIN before ordering
Z915E deck-size warning: John Deere assigns the separate TCA24445 clutch path to Z915E mowers with 48- or 54-inch decks. Do not order this TCA24446 clutch for a Z915E based on the mower model alone.
John Deere Z915B Applications
- John Deere Z915B with 60-inch deck: TCA24446 clutch path
Z915B mowers with 48- or 54-inch decks use a different clutch path. Confirm the deck size and original clutch number.
John Deere Z920M Applications
- John Deere Z920M with 48-inch deck: select TCA24446 applications
- John Deere Z920M with 54-inch deck: select TCA24446 applications
- John Deere Z920M with 60-inch deck: select serial 030001-and-higher applications
Z920M serial warning: Earlier 60-inch Z920M machines may use the separate AUC11007 clutch path. Check the complete PIN and serial-specific John Deere parts diagram.
John Deere Z925M Applications
- John Deere Z925M EFI with 54-inch deck: select TCA24446 applications
- John Deere Z925M EFI with 60-inch deck: select serial 030001-and-higher applications
- John Deere Z925M Flex Fuel with 54-inch deck: select serial 030001-and-higher applications
- John Deere Z925M Flex Fuel with 60-inch deck: select serial 030001-and-higher applications
Earlier Z925M 60-inch applications may use a different PTO clutch. Confirm the mower serial number before ordering.
John Deere Z930M & Z930M EFI Applications
- John Deere Z930M EFI with 60-inch deck: select TCA24446 applications
- John Deere Z930M with 54-inch deck: select TCA24446 applications
- John Deere Z930M with 60-inch deck: select TCA24446 applications
- John Deere Z930M with 72-inch deck: select TCA24446 applications
Additional John Deere ZTrak Applications
- John Deere Z920R: select 48- and 54-inch applications using TCA24446
- John Deere Z930R: select 54- and 60-inch applications using TCA24446
- John Deere Z945M EFI: select 60-inch applications using TCA24446
Compatibility warning: John Deere used multiple PTO clutches across the Z900 Series. Deck size, mower PIN, engine configuration, production revision, and original clutch number can change the required part.
Replaces OEM Part Numbers
- John Deere: TCA24446
- Earlier John Deere Number: TCA22416
John Deere supersession note: TCA24446 is the current replacement path for the earlier TCA22416 clutch.
Aftermarket Cross-Reference Numbers
- Warner Electric: 5218-338, 5218338
- Earlier Warner Number: 5218-312, 5218312
- Rotary: 17271
- Xtreme: X0919, X0919A
Warner supersession note: Warner identifies 5218-338 as the replacement for the earlier 5218-312 clutch.
Clutch Specifications
- Product Type: commercial electric PTO clutch with brake
- Voltage: 12 VDC
- Rated Torque: 200 ft-lbs
- Crankshaft Bore: 1-1/8 inch / 1.125 inch with standard keyway
- Pulley Diameter: approximately 6.62 inch
- Rotation: CCW from pulley side
- Mounting Style: standard mount
- Connection Type: integral electrical connection
- OEM Warner Current Draw: 6.53 amps
- OEM Warner Coil Resistance: 1.84 ohms
- OEM Warner Reference Weight: approximately 13.1 lbs
- Warner Reference Cable: 5218-251-032
The electrical values and cable number are reference specifications for the Warner 5218-338 clutch path. Verify the package contents and supplied connection shown by the third-party seller before purchasing.
Important TCA24446 vs. TCA24445 Check
TCA24446 and TCA24445 are separate John Deere PTO clutch paths.
- Z915E with 60-inch deck: TCA24446
- Z915E with 48-inch deck: TCA24445
- Z915E with 54-inch deck: TCA24445
- Z915B with 60-inch deck: TCA24446
- Z915B with 48- or 54-inch deck: TCA24445
Do not substitute these clutches using only the mower model, crankshaft bore, or physical appearance. Confirm the deck size and original clutch number.
Common Symptoms of a Failing PTO Clutch
- Mower blades will not engage when the PTO switch is activated
- The clutch clicks but the deck belt does not begin turning
- Blades engage when cold but stop after the mower heats up
- The clutch slips during heavy or wet cutting conditions
- The deck belt squeals, smokes, or overheats during engagement
- Burning smell near the engine crankshaft or clutch
- Grinding, rumbling, or excessive pulley-bearing noise
- Intermittent blade engagement under load
- Visible heat damage around the coil, connector, or cable
- Excessive looseness or roughness at the pulley bearing
A weak battery, charging-system problem, faulty PTO switch, damaged wiring, poor ground, slipping deck belt, seized spindle, worn idler, or incorrect belt tension can cause similar symptoms. Diagnose the complete electrical and deck-drive systems before replacing the clutch.
What’s Included
- 1 new electric PTO clutch corresponding to the seller’s TCA24446 / Warner 5218-338 listing
- Integrated electromagnetic clutch and brake assembly
- Pulley and center-bearing assembly
- Clutch-side electrical connection or cable as supplied by the third-party seller
Not included unless specifically stated by the seller: crankshaft mounting bolt, washer, key, spacer, anti-rotation rod, anti-rotation bracket, PTO switch, mower-side wiring harness, deck belt, or mower-specific installation hardware.
Third-Party Purchase Notice
This product is offered through an independent third-party marketplace seller. PTO Direct USA does not stock, package, ship, invoice, or process returns for this item.
Product branding, package contents, current price, shipping cost, delivery estimate, seller warranty, return eligibility, and inventory can change without notice. Review the complete marketplace listing and seller terms before purchasing.
The third-party seller is responsible for order processing, payment collection, shipment, delivery, cancellations, returns, refunds, and product-condition disputes.
Need Help Confirming Fitment?
Send PTO Direct USA the complete John Deere mower model, 17-character PIN, deck size, and original clutch number before purchasing.
Include clear photos of the clutch label, keyed bore, pulley, electrical connector, mounting orientation, and anti-rotation bracket or rod. When the original label is unreadable, include measurements for the crankshaft bore, pulley diameter, pulley offset, and clutch-body height.
FAQ
Does this fit a 2018 John Deere Z915E with a 60-inch deck?
Yes. John Deere assigns the TCA24446 PTO clutch path to the Z915E with a 60-inch deck. Confirm that the mower still has its original deck and provide the full mower PIN before purchasing.
Does this fit a John Deere Z915E with a 48-inch deck?
No. John Deere assigns the separate TCA24445 clutch path to the Z915E with a 48-inch deck.
Does this fit a John Deere Z915E with a 54-inch deck?
No. The Z915E with a 54-inch deck follows the separate TCA24445 clutch path.
What does TCA24446 replace?
John Deere identifies TCA24446 as the current replacement for the earlier TCA22416 PTO clutch.
What Warner clutch crosses to TCA24446?
The primary Warner cross-reference is Warner 5218-338.
Does Warner 5218-338 replace Warner 5218-312?
Yes. Warner identifies 5218-338 as the replacement for the earlier 5218-312 clutch.
What is Rotary 17271?
Rotary 17271 is the Rotary catalog number associated with this TCA24446 / Warner 5218-338 PTO clutch listing.
What are the main clutch specifications?
The Warner 5218-338 path uses a 1-1/8-inch keyed bore, approximately 6.62-inch pulley, CCW rotation from the pulley side, standard mounting, integral electrical connection, 12 VDC coil, and a 200 ft-lb torque rating.
Does this clutch use a normal crankshaft keyway?
Yes. It uses a conventional 1-1/8-inch keyed crankshaft bore.
Is this clutch reverse mounted?
No. Warner classifies the 5218-338 clutch path as a standard-mount clutch.
Does this fit every John Deere Z900 Series mower?
No. John Deere used different PTO clutches depending on the mower model, deck size, serial number, and production configuration.
Does this fit John Deere Z920M?
It fits select Z920M applications. The TCA24446 path includes select 48- and 54-inch configurations and select 60-inch mowers with serial numbers 030001 and higher. Confirm the mower PIN before purchasing.
Does this fit John Deere Z925M?
It fits select Z925M EFI and Z925M Flex Fuel applications. Deck-size and serial-number restrictions apply, especially on 60-inch configurations.
Does this fit John Deere Z930M?
It fits select Z930M and Z930M EFI applications using TCA24446. Confirm the deck size, complete PIN, and original clutch number.
Is Xtreme X0919 or X0919A the same replacement path?
Yes. Xtreme X0919 and X0919A are aftermarket replacement paths associated with John Deere TCA24446, TCA22416, and Warner 5218-338.
Is the mounting hardware included?
Do not assume the crankshaft bolt, washer, key, spacer, anti-rotation rod, bracket, or mower-side wiring is included. Review the third-party seller’s complete package description before purchasing.
Can I order this clutch by appearance?
No. Match TCA24446 or Warner 5218-338 first. Then confirm the 1-1/8-inch keyed bore, 6.62-inch pulley, CCW rotation, standard mounting, electrical connection, pulley offset, deck size, mower model, and complete PIN.