917-3446 PTO Clutch HD Upgrade for Cub Cadet | Warner 5218-29
This 917-3446 PTO clutch HD Upgrade is an electric PTO clutch for select Cub Cadet lawn and garden tractors using the 917-3446 / 717-3446 / Warner 5218-29 clutch path.
It replaces Cub Cadet 917-3446, 717-3446, and 717-3446P, and cross-references Warner 5218-29. The same MTD number is used on select Troy-Bilt, Bolens, Huskee, Scotts, White Outdoor, and Craftsman machines. Match the number on the original clutch before ordering by model name alone.
Built with a 1-inch crankshaft bore, 6-inch pulley, CCW rotation from the pulley side, and a 12V clutch/brake configuration.
Key Features
- HD Upgrade electric PTO clutch for the 917-3446 / Warner 5218-29 path
- Crankshaft bore: 1"
- Pulley diameter: 6"
- Rotation: CCW from the pulley side
- Voltage: 12V DC
- Clutch type: electric PTO clutch with mechanical brake
- Belt: 1/2" or 5/8"
- Body height: about 3-1/2"
- Wire lead about 10.75"
- Fully assembled. Confirm bore, pulley, rotation, and connector before install.
Compatible Brands and Models
Use this clutch when the original clutch is marked 917-3446, 717-3446, 717-3446P, or Warner 5218-29.
Cub Cadet
- 2160
- 2164
- 2165
- LT2180
- GT2521, including GT2521-48
Other MTD-built machines
Select Troy-Bilt, Bolens, Huskee, Scotts, White Outdoor, and Craftsman applications that use 717-3446 / 917-3446. Do not order from the brand name alone.
Browse other Cub Cadet PTO clutches, or start from the Cub Cadet clutch cross-reference.
Replaces OEM Part Numbers
- Cub Cadet / MTD: 917-3446, 717-3446, 717-3446P
- Troy-Bilt / Bolens / Huskee / Scotts / White Outdoor: 917-3446, 717-3446, 717-3446P, when that is the original clutch number
Cross-Reference Numbers
- Warner: 5218-29, 521829
- Stens: 255-431
- Oregon: 33-124
- Xtreme: X0037
- Prime Line: 7-06037
What’s Included
- Complete electric PTO clutch assembly
- 6" pulley
- Pre-installed bearing assembly
- Electromagnetic coil
- Mechanical brake assembly
- Wiring lead as shown
Why Buy From PTO Direct USA
- Fast USA shipping
- Fitment Guarantee
- 1-year warranty
- Fitment support before and after purchase
FAQ
What does 917-3446 replace?
917-3446 is the Cub Cadet / MTD service number for the Warner 5218-29 clutch. It also covers 717-3446 and 717-3446P.
Does this fit Cub Cadet 2160, 2164, and 2165?
Yes, when the original clutch is 917-3446 / 717-3446 / 5218-29. Confirm the number on the clutch before ordering.
Does this fit LT2180 and GT2521?
Yes. LT2180 and GT2521 are on this clutch path when the original number matches.
What bore and pulley does Warner 5218-29 use?
1-inch bore and a 6-inch pulley. Rotation is CCW from the pulley side.
Can PTO Direct USA confirm fitment?
Yes. Email support@ptodirectusa.com with the mower model, serial number, original clutch number, and a clear photo of the old clutch. Fitment support before and after purchase.
Need installation help? Read the PTO clutch installation guide.
If the old clutch will not slide off the engine shaft, use the stuck crankshaft guide before hammering or prying.
Need another replacement? Browse the electric PTO clutch catalog.