388740 PTO Clutch Replacement for Grasshopper 223, 325, 428D | Replaces Warner 5218-225, X0104

Overview

This 388740 PTO clutch replacement is an aftermarket electric PTO clutch for select Grasshopper commercial mower applications, including 200, 300, and 400 Series MidMount machines.

This clutch replaces Grasshopper 388740 and cross-references Warner 5218-225, Warner 5218-165, Xtreme X0104, Xtreme X0248, Stens 255-865, Rotary 15565, Oregon 33-155, and Sunbelt B1XT0248.

Built with a 1-1/8 inch crankshaft bore, 6-5/16 inch single pulley, and clockwise rotation, this clutch is designed for Grasshopper applications that use the 388740 / Warner 5218-225 single-pulley clutch path.

Key Features

• Aftermarket electric PTO clutch replacement for listed Grasshopper commercial mower applications
• Crankshaft Bore: 1-1/8" / 1.125"
• Pulley Diameter: 6-5/16" / approximately 6.31"
• Pulley Type: single pulley
• Belt Width: 5/8" belt on confirmed applications
• Rotation: CW from pulley side
• Voltage: 12V DC
• Torque Rating: 200 ft-lbs
• Connector Style: connector style as shown in product photos
• Integrated brake assembly for controlled blade stopping
• Fully assembled and ready to install after fitment verification

Compatible Brands & Models

This PTO clutch fits select Grasshopper and Woods mower applications that use the 388740, Warner 5218-225, or Warner 5218-165 clutch path. Fitment depends on original clutch number, crankshaft bore, pulley diameter, pulley type, rotation, connector style, anti-rotation setup, and mower configuration.

Grasshopper Applications

• Grasshopper 218
• Grasshopper 220
• Grasshopper 223
• Grasshopper 225
• Grasshopper 226V
• Grasshopper 227
• Grasshopper 321D
• Grasshopper 322D
• Grasshopper 325
• Grasshopper 325A
• Grasshopper 325D
• Grasshopper 327A
• Grasshopper 327EFI
• Grasshopper 329
• Grasshopper 428D
• Grasshopper 430D

Woods Applications

• Woods Mow'n Machine applications using 388740: verify original clutch number before ordering

Fitment note: If your original clutch is marked Grasshopper 388740, Warner 5218-225, Warner 5218-165, Xtreme X0104, Xtreme X0248, Stens 255-865, Stens 255-552, Prime Line 7-06278, Rotary 11237, Rotary 15565, or Oregon 33-155, this is the correct replacement path. However, carefully match specs if relying on model information alone.

Replaces OEM Part Numbers

• Grasshopper: 388740
• Woods: 388740

Cross-Reference Aftermarket Numbers

• Warner: 5218-225, 5218225
• Warner: 5218-165, 5218165
• Xtreme: X0104
• Xtreme: X0248
• Stens: 255-865
• Rotary: 15565
• Oregon: 33-155
• Sunbelt: B1XT0248

What’s Included

• Complete electric PTO clutch assembly
• Factory-balanced single pulley
• Pre-installed bearing assembly
• Encapsulated electromagnetic coil
• Integrated brake assembly
• Connector style as shown in product photos

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 this PTO clutch replace Grasshopper 388740?

Yes, this clutch replaces Grasshopper 388740 on compatible Grasshopper mower applications. Confirm your original clutch number, 1-1/8 inch bore, 6-5/16 inch single pulley, clockwise rotation, connector style, and anti-rotation setup before ordering.

Is Warner 5218-225 the same fitment as Grasshopper 388740?

Warner 5218-225 is the Warner cross-reference associated with the Grasshopper 388740 clutch path.

Does this replace Warner 5218-165?

Yes, Warner 5218-165 is listed in the same replacement path as Grasshopper 388740 and Warner 5218-225.

Does this fit Grasshopper 223?

Yes, this clutch is listed for select Grasshopper 223 mower applications using the 388740 / Warner 5218-225 clutch path. Match your original clutch number and physical specs before ordering.

Does this fit Grasshopper 325 or 329?

Yes, this clutch is listed for select Grasshopper 325, 325A, 325D, and 329 applications. Confirm your original clutch number before ordering.

Does this fit Grasshopper 428D or 430D?

Yes, this clutch is listed for select Grasshopper 428D and 430D mower applications using the 388740 replacement path.

Is Grasshopper 388740 the same as 388771?

No. Grasshopper 388740 and Grasshopper 388771 are separate clutch paths. This 388740 clutch uses a 6-5/16" single pulley, while the 388771 path uses a 4-7/8" double pulley.

Is Grasshopper 388740 the same as 388769?

No. Grasshopper 388769 is a separate clutch path associated with Warner 5218-67 / 5218-214 and Xtreme X0043. Do not merge it with this 388740 / Warner 5218-225 listing.

What bore size does this clutch use?

This clutch uses a 1-1/8 inch bore, also written as 1.125". It will not fit a 1-inch crankshaft.

What pulley does this clutch use?

This clutch uses a 6-5/16 inch single pulley. Do not substitute a double-pulley clutch unless your original part number confirms that path.

What rotation does this clutch use?

This clutch uses clockwise rotation, commonly written as CW. Match rotation to your original clutch before installing a replacement.

What are common signs of a failing PTO clutch?

Common symptoms include mower blades not engaging, the PTO clutch clicking but the blades not spinning, slipping under load, intermittent blade engagement, a burning smell, or blades slowing down after the mower heats up. A worn coil can work cold, then weaken after 10 to 30 minutes of mowing.

Can PTO Direct USA help me 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 the best fitment help, include photos of the clutch label or stamped number, wiring connector, pulley, anti-rotation bracket, and crankshaft area.

Need help checking crankshaft size? Read the PTO clutch bore size guide.

Need help with rotation? Read the PTO clutch rotation guide.

If your old clutch will not come off the crankshaft, read the PTO clutch stuck on crankshaft guide before prying or hammering.

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