5100915SM PTO Clutch Replacement for Ferris, Snapper & Simplicity | Replaces Warner 5219-34A

Overview

This 5100915SM PTO clutch replacement is an aftermarket electric PTO clutch for select Ferris, Snapper, Snapper Pro, Simplicity, and related mower applications using the Warner 5219-34A clutch path.

It replaces 5100915SM, 5100915S, 5100915, Warner 5219-34A, and Warner 5219-34.

This clutch is commonly associated with select medium-duty commercial and prosumer mower platforms, including Ferris IS 500Z, Ferris F50XT, Snapper 400Z, Snapper 500Z, Snapper Pro S50X / S50XT, and Simplicity ZT 3500 / ZT 4000 applications. Fitment can vary by model, deck size, engine package, wiring setup, and production configuration.

Built with a 1-inch crankshaft bore, 6.00-inch pulley, CCW rotation from the pulley side, and a 125 ft-lb class electric PTO clutch design, this replacement is intended for mower applications that originally used the 5100915SM / Warner 5219-34A clutch family.

Key Features

• Electric PTO clutch replacement for select Ferris, Snapper, Snapper Pro, and Simplicity mower applications
• Replaces OEM Numbers: 5100915SM, 5100915S, 5100915
• Replaces Warner Numbers: 5219-34A, 521934A, 5219-34, 521934
• Crankshaft Bore: 1 inch
• Pulley Diameter: 6.00 inches
• Rotation: CCW from pulley side
• Voltage: 12V electric PTO clutch
• Torque Class: 125 ft-lb replacement path
• Pulley Style: V-groove mower deck belt pulley
• Connector Style: wire lead
• Designed for dependable mower deck engagement when matched to the correct OEM clutch path
• Fully assembled and ready to install after fitment verification

Compatible Brands & Model Series

This PTO clutch is intended for select mower platforms using the 5100915SM / Warner 5219-34A clutch path.

Ferris Applications

• Ferris IS 500Z Series: select 44-inch and 48-inch applications
• Ferris F50XT Series: select 48-inch applications

Snapper and Snapper Pro Applications

• Snapper 400Z Series: select 48-inch applications
• Snapper 500Z Series: select 48-inch applications
• Snapper Pro S50X / S50XT: select mid-mount zero-turn applications

Simplicity Applications

• Simplicity ZT 3500 Series: select 48-inch applications
• Simplicity ZT 4000 Series: select applications using the 5100915SM clutch path

Important: Match the OEM part number or manufacturer part number on your original clutch whenever possible. Then confirm bore size, pulley diameter, rotation, and connector style before ordering. If you are relying on model information alone and cannot confirm the original clutch number, contact support before purchasing.

Replaces OEM Part Numbers

• Ferris: 5100915SM, 5100915S, 5100915
• Snapper: 5100915SM, 5100915S, 5100915
• Snapper Pro: 5100915SM, 5100915S, 5100915
• Simplicity: 5100915SM, 5100915S, 5100915
• Warner: 5219-34A, 521934A, 5219-34, 521934, 5219-3

Aftermarket Cross-Reference Numbers

• Xtreme: X0354, X0379
• Stens: 255-208X
• Rotary: 12658
• 8TEN: 810-CPT2332O
• Oregon: 33-190, 33-130

Critical Fitment Check: Do Not Confuse With Other Ferris and Warner Clutches

The Warner 5219 family includes many clutches that look similar but are not interchangeable. This listing is for the 5100915SM / Warner 5219-34A clutch path with a 1-inch bore, 6.00-inch pulley, CCW rotation, and 125 ft-lb class replacement specification.

Fitment rule: Do not order by Warner 5219 family number alone. Match the full stamped number, such as 5219-34A or 5100915SM, then confirm the physical specs.

6-Inch Pulley Fitment Note

This listing is built around the confirmed 6.00-inch pulley replacement path. Do not substitute a similar-looking clutch with a different pulley size unless your OEM part number, Warner number, and physical specs confirm the match.

Before ordering, confirm that your original clutch uses a 1-inch bore, 6.00-inch pulley, CCW rotation from the pulley side, and compatible wiring / anti-rotation setup.

Do not install or test-mount the clutch until fitment is confirmed. Installation marks can affect return eligibility.

Common Symptoms of a Failing PTO Clutch

• Blades will not engage when the PTO switch is activated
• PTO clutch clicks but the mower deck does not start
• Deck engagement slips under load
• Blades engage cold but stop after the mower heats up
• Fuse blows when the PTO is engaged
• Burning smell near the clutch or belt area
• Grinding, rattling, or bearing noise near the clutch
• Visible heat damage, wobble, or bearing play

Before replacing the clutch, also check the PTO switch, battery voltage, fuse, ground, wiring connector, deck belt routing, spindle drag, idler pulleys, and belt condition.

Installation and Burnishing Note

New electric PTO clutches may require a proper burnishing procedure after installation. Burnishing helps seat the friction surfaces so the clutch can develop full holding power under load.

After installation, cycle the clutch on and off at moderate engine speed with no cutting load. Avoid immediately engaging the deck at full throttle in heavy grass before the clutch has been properly seated.

For removal tips, wiring checks, torque guidance, and burnishing steps, read the PTO Clutch Installation Guide before installing.

What’s Included

• Complete electric PTO clutch assembly
• Pre-installed 6.00-inch pulley assembly
• Encapsulated electromagnetic coil
• Pre-installed bearings
• Wiring lead / connector assembly as supplied by the current replacement unit

Note: Harness adapters and mounting hardware may vary by supplier. Reuse or replace the correct factory hardware and wiring components as required by your mower setup.

Why Buy From PTO Direct USA?

• Fast USA shipping
• Fitment guarantee
• 1-year warranty
• Fitment-first product descriptions
• Clear part-number routing for mower clutch replacements
• Real-world replacement support for homeowners, repair shops, and commercial mower owners

Need Help Confirming Fitment?

If you are unsure whether this clutch fits your mower, send us your mower model, serial number, original clutch number, and clear photos of the clutch label, wiring connector, pulley, anti-rotation setup, crankshaft area, and mower ID tag before ordering.

FAQ

Does this replace 5100915SM?

Yes, this listing is built for the 5100915SM PTO clutch path. It also covers related references including 5100915S, 5100915, Warner 5219-34A, and Warner 5219-34.

Does this replace Warner 5219-34A?

Yes, Warner 5219-34A and 5219-34 are part of this replacement path. Search formats may also appear as 521934A, 521934, or 5219 34A.

Is this the same as Ferris 5105090YP or Warner 5218-388?

No. 5105090YP / Warner 5218-388 is a different heavy-duty commercial clutch path that uses a 1-1/8 inch bore. This 5100915SM / Warner 5219-34A clutch path uses a 1-inch bore.

What bore size does this clutch use?

This clutch path uses a 1-inch crankshaft bore. Always confirm your crankshaft size before ordering.

What pulley size does this clutch use?

This listing uses a confirmed 6.00-inch pulley. Do not substitute another Warner 5219 clutch unless the original clutch number and physical specs match this replacement path.

Does this fit every Ferris or Snapper mower?

No. Ferris, Snapper, Snapper Pro, and Simplicity use multiple PTO clutch paths depending on mower model, deck size, engine package, wiring setup, and production configuration. Match the OEM or Warner clutch number whenever possible.

What should I check before replacing the PTO clutch?

Check the original clutch number, crankshaft bore, pulley diameter, rotation, connector style, anti-rotation setup, mounting hardware, deck belt routing, PTO switch, battery voltage, fuse, and ground before replacing the clutch.

Need a different fitment? Browse the full electric PTO clutch catalog to view all available replacement options.

Also shop by brand: Ferris PTO clutches