TCA24445 High-Torque PTO Clutch for John Deere Z915E 48 & 54 Inch | 5219-179
Overview
This aftermarket TCA24445 electric PTO clutch is a replacement for select John Deere Z915B, John Deere Z915E, and related commercial ZTrak mower applications using the TCA24445 or Warner 5219-179 clutch path.
For the John Deere Z915E, this is the clutch path used with the original 48-inch and 54-inch mower decks. The Z915E with a 60-inch deck uses the separate TCA24446 clutch path.
The third-party seller markets this as a 150 ft-lb high-torque replacement for the original 125 ft-lb Warner clutch. The OEM reference configuration uses a 1-1/8-inch keyed crankshaft bore, approximately 6.62-inch pulley, CCW rotation from the pulley side, standard mounting, and an integral 12 VDC electrical connection.
This is an affiliate listing. The product is sold and fulfilled by an independent third-party seller. Current price, availability, shipping, returns, warranty coverage, branding, and package contents are controlled by that seller and may change.
Key Features
- Aftermarket electric PTO clutch and brake assembly
- Primary John Deere Number: TCA24445
- Earlier John Deere Number: TCA22415
- Current Warner Cross-Reference: 5219-179, 5219179
- Earlier Warner Number: 5219-144, 5219144
- Xtreme Cross-Reference: X0915, X0915A
- Seller-Rated Torque: 150 ft-lbs
- OEM Warner Reference Torque: 125 ft-lbs
- Voltage: 12 VDC
- 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
- Seller-marketed larger-bearing replacement design
- 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 and deck-specific replacement. Confirm that the John Deere parts diagram identifies TCA24445 or that the original clutch is marked 5219-179 or 5219-144.
John Deere Z915E Applications
- John Deere Z915E with 48-inch deck: TCA24445 clutch path
- John Deere Z915E with 54-inch deck: TCA24445 clutch path
Z915E deck warning: The Z915E with a 60-inch deck uses the separate TCA24446 clutch path. Do not order this TCA24445 clutch from the Z915E model name alone.
John Deere Z915B Applications
- John Deere Z915B with 48-inch deck: TCA24445 clutch path
- John Deere Z915B with 54-inch deck: TCA24445 clutch path
The Z915B with a 60-inch deck follows the separate TCA24446 path.
John Deere Z925M Flex Fuel Applications
- John Deere Z925M Flex Fuel with 54-inch deck: select early serial-range applications using TCA24445
Z925M serial warning: John Deere shows a clutch change around serial 030001 on the 54-inch Z925M Flex Fuel path. Confirm the complete mower PIN in the serial-specific John Deere parts catalog before ordering.
Do not use this page to confirm a 60-inch Z925M Flex Fuel mower. Published aftermarket data conflicts with John Deere’s official clutch routing for the early 60-inch configuration. Use the mower PIN and John Deere parts diagram.
Replaces OEM Part Numbers
- John Deere: TCA24445
- Earlier John Deere Number: TCA22415
John Deere replacement note: TCA24445 is the current John Deere replacement path for the earlier TCA22415 clutch.
Aftermarket Cross-Reference Numbers
- Warner Electric: 5219-179, 5219179
- Earlier Warner Number: 5219-144, 5219144
- Xtreme: X0915, X0915A
Warner replacement note: Warner identifies 5219-179 as the replacement for the earlier 5219-144 clutch.
Clutch Specifications
- Product Type: electric PTO clutch with integrated brake
- Voltage: 12 VDC
- Seller-Rated Torque: 150 ft-lbs
- OEM Warner Reference Torque: 125 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: 4.23 amps
- OEM Warner Coil Resistance: 2.84 ohms
- OEM Warner Reference Weight: approximately 11.8 lbs
The current draw, resistance, weight, and 125 ft-lb rating are reference specifications for the original Warner 5219-179 clutch path. The 150 ft-lb rating is the aftermarket seller’s rating for the replacement product.
Important TCA24445 vs. TCA24446 Check
TCA24445 and TCA24446 are separate John Deere PTO clutch paths.
- Z915E with 48-inch deck: TCA24445
- Z915E with 54-inch deck: TCA24445
- Z915E with 60-inch deck: TCA24446
- Z915B with 48-inch deck: TCA24445
- Z915B with 54-inch deck: TCA24445
- Z915B with 60-inch deck: TCA24446
These clutches share several published specifications, including the 1-1/8-inch bore, approximately 6.62-inch pulley, CCW rotation, standard mounting, and integral connection. That does not make them automatically interchangeable.
The OEM Warner TCA24445 path is rated at 125 ft-lbs, while the TCA24446 path is rated at 200 ft-lbs. Match the John Deere clutch number and deck application before ordering.
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 or electrical connector
- 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 create similar symptoms. Diagnose the complete electrical and deck-drive systems before replacing the clutch.
What’s Included
- 1 new HD Switch aftermarket electric PTO clutch corresponding to the seller’s TCA24445 / 5219-179 listing
- Integrated electromagnetic clutch and brake assembly
- Pulley and center-bearing assembly
- Clutch-side electrical connection as supplied by the 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 service, 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, PIN, deck size, and original PTO clutch number before purchasing.
Include clear photos of the mower identification tag, 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
What does this PTO clutch replace?
This clutch replaces select applications using John Deere TCA24445, the earlier TCA22415, Warner 5219-179, or the earlier Warner 5219-144.
Does this fit a John Deere Z915E with a 48-inch deck?
Yes. John Deere assigns TCA24445 to the Z915E with an original 48-inch mower deck.
Does this fit a John Deere Z915E with a 54-inch deck?
Yes. John Deere assigns TCA24445 to the Z915E with an original 54-inch mower deck.
Does this fit a John Deere Z915E with a 60-inch deck?
No. The Z915E with a 60-inch deck uses the separate TCA24446 clutch path.
Does this fit a John Deere Z915B?
It fits Z915B mowers with original 48- or 54-inch decks. The Z915B with a 60-inch deck uses TCA24446.
Does this fit a John Deere Z925M Flex Fuel?
It fits select early-serial Z925M Flex Fuel mowers with a 54-inch deck. Confirm the complete mower PIN because John Deere shows a clutch change around serial 030001.
Does this fit a 60-inch Z925M Flex Fuel?
Do not use this listing to confirm that application. John Deere’s official commercial parts guide routes the early 60-inch Z925M Flex Fuel configuration to AUC11007, while some aftermarket catalogs list TCA24445. Confirm the PIN through John Deere’s serial-specific parts catalog.
What Warner clutch crosses to TCA24445?
The current Warner cross-reference is 5219-179. Warner identifies it as the replacement for the earlier 5219-144 clutch.
Does TCA24445 replace TCA22415?
Yes. John Deere identifies TCA24445 as the replacement for the earlier TCA22415 PTO clutch.
What are the main clutch specifications?
The OEM Warner reference path uses a 1-1/8-inch keyed bore, approximately 6.62-inch pulley, CCW rotation from the pulley side, standard mounting, integral connection, and a 125 ft-lb torque rating.
Why is this replacement rated at 150 ft-lbs?
The third-party seller markets this replacement as a 150 ft-lb high-torque clutch. The original Warner 5219-179 reference clutch is rated at 125 ft-lbs.
Is Xtreme X0915 the same replacement path?
Yes. Xtreme X0915 and X0915A are aftermarket replacement paths associated with John Deere TCA24445 and Warner 5219-179.
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 5219-179 clutch path as a standard-mount clutch.
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 listing’s package details before purchasing.
Can I order this clutch by appearance?
No. Match TCA24445 or Warner 5219-179 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 PIN.