If you already know your part number, browse all available options in our Cub Cadet PTO clutch collection to find a direct replacement.
Cub Cadet lawn tractors, zero-turn mowers, and garden tractors rely on electric PTO clutches to engage the mower deck and drive the blades. When the clutch begins slipping, overheating, or failing to engage, cutting performance drops quickly. This guide covers common Cub Cadet PTO clutch applications and helps you identify the correct replacement by part number and mower platform.
Cub Cadet XT Series, RZT, Z-Force & Garden Tractor PTO Clutch Applications
Cub Cadet electric PTO clutches are used across residential and commercial mower platforms including XT1, XT2, RZT, Z-Force, and legacy garden tractor models. These electromagnetic clutches mount to the engine crankshaft and engage the mower deck belt when the PTO switch is activated.
If the clutch begins slipping, making noise, or fails to engage the blades, replacement is usually the most reliable fix. Common Cub Cadet PTO clutch replacement part numbers include 917-04080, 917-3389, 917-05121, 917-04622, and 917-1709.
The most accurate way to confirm fitment is to match the OEM part number stamped on your original clutch. This ensures the correct pulley diameter, crankshaft bore, and engagement characteristics for your specific Cub Cadet mower.
What Are the Signs of a Failing Cub Cadet PTO Clutch?
A failing electric PTO clutch usually shows warning signs before complete failure. If your mower blades fail to engage, disengage inconsistently, or stop under load, the clutch is one of the first components to inspect.
- Blades will not engage when the PTO switch is turned on
- Intermittent engagement or inconsistent blade operation
- Burning smell or excessive heat near the clutch assembly
- Squealing or grinding noises caused by worn bearings
- Blades stop under load in thicker grass
- Electrical issues or blown fuse caused by coil failure
If these symptoms appear, replacing the PTO clutch assembly will usually restore proper blade engagement and dependable mowing performance.
Popular Cub Cadet PTO Clutch Replacements
The following PTO clutch part numbers are commonly used across Cub Cadet mower platforms. Select your part number below to view detailed fitment and replacement options:
- 917-04080 PTO Clutch for Cub Cadet XT1, XT2 and Craftsman lawn tractor platforms. One of the most common residential clutch replacements.
- 917-3389 PTO Clutch for Cub Cadet garden tractors and MTD-built equipment. Widely used across multiple residential mower platforms.
- 917-05121 PTO Clutch for Cub Cadet, Troy-Bilt, and Craftsman lawn tractors. Common replacement across the MTD equipment family.
- 917-04622 PTO Clutch for Cub Cadet XT series and riding mowers. Updated design replacing earlier 717-series configurations.
- 917-1709 PTO Clutch for Cub Cadet RZT, Z-Force, and Tank models. Designed for zero-turn applications requiring higher torque output.
Many Cub Cadet models share PTO clutch configurations with MTD, Troy-Bilt, Craftsman, Yard Machines, and White Outdoor platforms. Always confirm using the OEM number stamped on your original clutch.
How to Find the Right Cub Cadet PTO Clutch Replacement
Start by locating the part number stamped on your original clutch. This is the fastest way to ensure correct fitment. Once identified, compare against the product links above or browse the full Cub Cadet PTO clutch collection.
If your mower is part of the XT1 or XT2 series, start with the 917-04080 PTO clutch. For garden tractor platforms, check the 917-3389 PTO clutch.
For broader MTD platform compatibility, review 917-05121 or 917-04622. For zero-turn models like RZT and Z-Force, confirm fitment with 917-1709.
Find the Right Cub Cadet PTO Clutch Replacement
The most accurate way to select the correct replacement is by matching the OEM number on your original clutch. You can also browse the complete Cub Cadet PTO clutch collection to compare specifications and available options.
PTO Direct USA supplies OEM-spec electric PTO clutch replacements for Cub Cadet, MTD, Troy-Bilt, Craftsman, Toro, Exmark, and more. View the full PTO clutch catalog to find the correct replacement for your mower.