601801K PTO Clutch for Hustler Sport | Replaces 601801, Warner 5217-53

Overview

Restore mower deck blade engagement with this 601801K PTO clutch replacement for select Hustler Sport zero-turn mowers. This aftermarket clutch replaces the 601801 / 601801K application family and cross-references Warner 5217-53.

Our standard black pulley unit features a 1-inch keyed crankshaft bore, an approximately 6-inch pulley and counter-clockwise rotation viewed from the pulley side. Applications include selected Sport 42-inch, 48-inch and 54-inch configurations when the original clutch number and physical fitment match.

Key Features & Specifications

• Product Type: Aftermarket electric PTO clutch with integrated brake
• Lead Replacement Numbers: 601801K and 601801
• Crankshaft Bore: 1 inch, keyed
• Pulley Diameter: Approximately 6 inches (5.95-inch specification)
• Pulley Finish: Standard black
• Rotation: CCW, viewed from the pulley side
• Belt Compatibility: A/B belt applications, 1/2 inch or 5/8 inch; use your mower’s specified deck belt
• Electrical Connection: Two-pin clutch-side socket with wiring adapter as shown in the product photos
• Assembled clutch and pulley with installed bearings

Hustler Sport Model Fitment

Factory-Documented Applications

• Hustler Sport 42-inch: model 929125
• Hustler Sport 48-inch: model 929133

Hustler Sport parts manual 110907 identifies 601801 as Warner I-5217-53 for models 929125 and 929133. See the Briggs & Stratton 17.5/21 HP engine installation diagram on printed page 4-2 and parts list on 4-3.

Additional Catalog Application References

Aftermarket application catalogs also reference the following Sport models. Verify the engine configuration, serial number and original clutch number for your particular mower:

• Sport 42-inch: 929463, 929851, 929869, 930198, 930206
• Sport 48-inch: 929471, 930214, 930222
• Sport 54-inch: 929596, 930651

Important engine check: Some Sport configurations, including Briggs & Stratton 26 HP applications, use a different clutch such as 601784K. Choose by the original clutch number and the correct engine diagram, rather than deck size or the Sport name alone.

Replaces OEM Part Numbers

• Hustler / Excel: 601801K, 601801

601801K kit reference: Hustler factory manuals identify 601801K as a clutch kit supplied with a pigtail. This listing supplies our aftermarket clutch and the connector or adapter shown in the product photos. Compare your original pigtail and mower-side connection, and check the included parts below.

Manufacturer & Aftermarket Cross-References

• Warner: 5217-53 / 521753
• Additional Warner catalog references: 5217-34 / 521734, 5217-44 / 521744, 5217-48 / 521748
• Xtreme: X0109

These numbers identify the replacement application family. This product is our standard black pulley aftermarket clutch, rather than a genuine Warner or Xtreme-branded unit.

What’s Included

• Complete electric PTO clutch assembly with black pulley
• Installed bearings, electromagnetic coil and integrated brake
• Electrical connector and wiring adapter as pictured

Mounting hardware and spacers are included only when shown in the product photos. Follow the mower’s service instructions for the retaining hardware, anti-rotation arrangement and pulley alignment.

Why Buy From PTO Direct USA?

• Fast USA shipping
• Fitment Guarantee
• 1-year limited warranty
• Clear product photos for comparing the bore, pulley and connector
• Fitment support before and after purchase

FAQ

Does this replace both 601801 and 601801K?

Yes, for the corresponding clutch application. The K number identifies a factory kit, so compare our pictured package contents with the parts needed for your repair.

Is Warner 5217-53 the correct cross-reference?

Yes. Hustler’s factory Sport manual identifies 601801 as Warner I-5217-53. Warner also lists 601801 among the manufacturer references for 5217-53.

Will this fit every Hustler Sport?

No. Sport mowers have different engine configurations and clutch applications. Match 601801, 601801K or a verified clutch cross-reference and compare the connector and mounting arrangement.

What bore size does it use?

This clutch uses a 1-inch keyed bore. A mower with a 1-1/8-inch crankshaft requires a different shaft fit.

Can you help identify my Hustler clutch?

Yes. Email support@ptodirectusa.com or text (541) 361-8778 with your mower model and serial numbers, engine information and clear photos of the clutch label, plug, pulley and mounting arrangement.

Need installation help? Read our PTO clutch installation guide.

Need a different clutch? Browse our electric PTO clutch catalog for other replacement applications.