917-04376A PTO Clutch for Cub Cadet RZT42 | Replaces 717-04376A, 917-04376 & 717-04376

Overview

Restore mower deck blade engagement with this 917-04376A PTO clutch replacement for select Cub Cadet RZT42 zero-turn mowers. This aftermarket electric clutch replaces 717-04376A, 917-04376 and 717-04376 in the same factory replacement family.

Our standard black pulley clutch uses a 1-inch keyed crankshaft bore, an approximately 6-inch pulley and counter-clockwise rotation viewed from the pulley side. Match the original clutch number, electrical connection and mounting arrangement before ordering.

Key Features & Specifications

• Product Type: Aftermarket electric PTO clutch with integrated brake
• Lead Replacement Number: 917-04376A
• 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 the belt specified for your mower deck
• Electrical Connection: Two-pin clutch-side socket with wiring adapter as shown in the product photos
• Assembled clutch and pulley with installed bearings

Cub Cadet RZT42 Model Fitment

Factory-documented application: Cub Cadet RZT42, model 17AE2ACG010.

The Cub Cadet 42-inch RZT parts manual 769-05934 lists 917-04376A in the Engine Connections diagram, page 9, item 16.

For other RZT configurations, confirm that your original clutch or the correct factory parts diagram specifies 917-04376A, 917-04376, 717-04376A or 717-04376. The RZT name or 42-inch deck size alone does not establish fitment.

Replaces OEM Part Numbers

• Cub Cadet / MTD: 917-04376A
• Cub Cadet / MTD: 917-04376
• Cub Cadet / MTD: 717-04376A
• Cub Cadet / MTD: 717-04376

Supersession note: Cub Cadet identifies 917-04376A as the service replacement for 717-04376, 717-04376A and 917-04376. This listing is an aftermarket replacement for those applications, not a genuine Cub Cadet clutch.

Aftermarket Cross-Reference

• Xtreme / Stens: X0399

X0399 is listed as a replacement for the same four OEM numbers. It is a fitment reference; this product is supplied as our standard black pulley aftermarket clutch.

This unit also shares an aftermarket replacement family with the 917-05121 PTO clutch replacement. View its dedicated page for that part number's applications and compare your original connection and mounting details.

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 your mower’s service instructions for the retaining hardware, anti-rotation bracket and pulley alignment.

Why Buy From PTO Direct USA?

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

FAQ

Does this replace 717-04376A and 917-04376?

Yes. Those numbers, along with 717-04376, belong to the factory replacement family serviced by 917-04376A. Confirm the original number and physical configuration before installation.

Will this fit every Cub Cadet RZT42?

No. Model 17AE2ACG010 is documented above. Other RZT42 versions can use different clutch assemblies, so check your complete mower model number and parts diagram.

What bore size does this clutch use?

This clutch uses a 1-inch keyed bore. It is not the correct shaft fit for a 1-1/8-inch crankshaft.

Is this a genuine Cub Cadet or Xtreme clutch?

No. This is an aftermarket replacement sold by PTO Direct USA. Cub Cadet, MTD and X0399 numbers identify the replacement application.

Can you help confirm the connector and fitment?

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

Need installation help? Read our PTO clutch installation guide.

Compare other applications in our Cub Cadet PTO clutch collection or browse the full electric PTO clutch catalog.