5218-388 PTO Clutch Replacement for Ferris & Snapper Pro | Replaces 5105090YP, 5100084SM

Overview

This 5218-388 PTO clutch replacement is a heavy-duty aftermarket electric PTO clutch for select Ferris, Snapper Pro, Simplicity, Briggs & Stratton, and related commercial mower applications using the Warner 5218-388 clutch path.

It replaces Warner 5218-388, Warner 5218-221, Warner 5218-134, Ferris 5105090YP, 5105090, 5100084SM, 5100084S, and 5100084.

This clutch is commonly associated with commercial Ferris IS-series zero-turn mowers, Ferris SRS stand-on mowers, Ferris FW walk-behind units, Snapper Pro commercial mowers, and select Simplicity commercial platforms. Fitment can vary by mower model, deck size, engine package, wiring setup, and production configuration, so always confirm the original clutch number before ordering.

Built with a 1-1/8 inch crankshaft bore, approximately 6.54-inch pulley, CCW rotation from the pulley side, and a commercial-duty 12V electric clutch design, this replacement is intended for heavy mower deck applications that require the Warner 5218-388 / 5218-221 clutch family.

Key Features

• Heavy-duty electric PTO clutch replacement for commercial mower applications
• Replaces Warner Numbers: 5218-388, 5218388, 5218-221, 5218-134
• Replaces OEM Numbers: 5105090YP, 5105090, 5100084SM, 5100084S, 5100084
• Crankshaft Bore: 1-1/8 inch
• Pulley Diameter: approximately 6.54 inches
• Belt Width: commonly used with 5/8-inch deck belt applications
• Rotation: CCW from pulley side
• Voltage: 12V electric PTO clutch
• Torque Class: commercial 200 ft-lb clutch path
• Designed for heavy commercial mower deck engagement
• Fully assembled and ready to install after fitment verification

Compatible Brands & Model Series

This PTO clutch is intended for select commercial mower platforms using the Warner 5218-388 / 5218-221 and Ferris 5105090YP / 5100084SM clutch path.

Ferris Applications

• Ferris IS Series: select IS1500Z, IS1500ZX, IS2000Z, IS2100Z, IS2500Z, and IS3100Z applications
• Ferris ISX Series: select ISX800 and ISX2200 applications
• Ferris SRS Series: select SRS Z2 stand-on mower applications
• Ferris FW Series: select FW35 and FW45 commercial walk-behind applications
• Ferris ProCut / Outfront: select Procut S, F50XT, F150XT, and F200XT applications

Snapper Pro Applications

• Snapper Pro S-Series: select S50XT, S75X, S125XT, S150X, and S200XT applications
• Snapper Pro Walk-Behind: select SW30 commercial walk-behind applications

Simplicity Applications

• Simplicity Citation XT: select commercial Citation XT applications
• Simplicity Cobalt: select commercial Cobalt zero-turn applications

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: 5105090YP, 5105090, 5100084SM, 5100084S, 5100084
• Snapper Pro: 5105090YP, 5105090, 5100084SM, 5100084S, 5100084
• Simplicity: 5105090YP, 5105090, 5100084SM, 5100084S, 5100084
• Briggs & Stratton: 5105090YP, 5105090
• Warner: 5218-388, 5218388, 5218-221, 5218-134

Aftermarket Cross-Reference Numbers

• Xtreme: X0245
• Stens: 255-827
• Rotary: 14743
• 8TEN: 810-CPT2328O
• Rareelectrical: 255-827C4
• A&I: B1XT0245
• The ROP Shop: 369818

Critical Fitment Check: Bore, Pulley, and Rotation

The Warner 5218 family includes many clutches that can look similar but are not interchangeable. This replacement path is built around a 1-1/8 inch bore, approximately 6.54-inch pulley, and CCW rotation from the pulley side.

Fitment rule: Do not order by Warner family number alone. Match the full stamped number, such as 5218-388, 5218-221, or the OEM number 5105090YP / 5100084SM, then confirm the physical specs.

Before Ordering

Before ordering this Warner 5218-388 PTO clutch replacement, confirm:

• Original clutch number matches 5218-388, 5218388, 5218-221, 5218-134, 5105090YP, 5105090, 5100084SM, 5100084S, or 5100084
• Crankshaft bore is 1-1/8 inch
• Pulley diameter is approximately 6.54 inches
• Rotation is CCW from pulley side
• Belt width and pulley profile match your mower deck belt path
• Connector style and jumper harness setup match or can be safely connected
• Anti-rotation bracket / D-drive setup aligns correctly
• Mower model, serial number, deck size, and engine package support this clutch path

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

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 pulley assembly
• Encapsulated electromagnetic coil
• Pre-installed bearings
• Integral connector

Why Buy From PTO Direct USA?

• Fast USA shipping
• Fitment guarantee
• 1-year warranty
• Fitment-first product descriptions
• Clear part-number routing for commercial mower applications
• 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, jumper harness, pulley, anti-rotation setup, crankshaft area, and mower ID tag before ordering.

FAQ

Does this replace Warner 5218-388?

Yes, this listing is built for the Warner 5218-388 clutch path. Search formats may also appear as 5218388 or 5218 388. Confirm the full original clutch number before ordering.

Does this replace Ferris 5105090YP?

Yes, Ferris 5105090YP and 5105090 are commonly routed to the Warner 5218-388 replacement path. Confirm your original clutch number, mower model, and physical specs before ordering.

Does this replace 5100084SM?

Yes, 5100084SM, 5100084S, and 5100084 are commonly routed to the Warner 5218-221 / 5218-388 replacement family. Confirm your original clutch number before ordering.

Is Warner 5218-388 the same as Warner 5218-221?

Warner 5218-388 and Warner 5218-221 are commonly routed to the same replacement clutch family for Ferris, Snapper Pro, Simplicity, and Briggs & Stratton commercial mower applications. This listing also covers related OEM numbers including 5105090YP, 5105090, 5100084SM, 5100084S, and 5100084. We also have a 5218-388 vs 5218-221 cross-reference note if you want to compare the number paths.

Does this fit every Ferris mower?

No. Ferris uses multiple PTO clutch paths depending on mower model, deck size, engine package, and production configuration. Match the original OEM or Warner clutch number whenever possible.

What bore size does this clutch use?

This clutch path uses a 1-1/8 inch crankshaft bore. It is not interchangeable with 1-inch bore Warner 5219-series clutches.

Why does connector style matter?

This clutch path may use an integral connector and a separate jumper harness. If the jumper harness is damaged, melted, or missing, the clutch may not connect correctly without repair or replacement.

What should I check before replacing the PTO clutch?

Check the original clutch number, crankshaft bore, pulley diameter, rotation, connector style, jumper harness, 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 | Snapper PTO clutches | Simplicity PTO clutches.