Electric PTO Clutch for Cub Cadet 917-04622 717-04183 717-04622 917-04183 GT1A-MT09 Warner 5219-99 HiTorque PTO Clutch for Cub Cadet MTD RZT42 RZT50 ZT50 ZT5000 Craftsman Bolens Troy-Bilt Mustang

What It Is

This is an electric PTO (power take-off) clutch that engages and disengages the mower blades on select zero-turn and lawn tractors. It’s designed as a direct replacement for Cub Cadet, MTD, Craftsman, Bolens, Troy-Bilt, and Mustang models using a 3/4-inch shaft and 3-bolt mounting pattern.

Fitment & Compatibility

Critical checks before buying:

• Shaft size: Must be 3/4-inch diameter (measure your existing clutch shaft).
• Mounting pattern: 3-bolt pattern with 3.25-inch bolt circle (center-to-center across two bolts).
• OEM cross-references: Cub Cadet 917-04622, 717-04183, 717-04622, 917-04183; Warner 5219-99; MTD 917-04183; HiTorque GT1A-MT09.
• Common models: Cub Cadet RZT42, RZT50, ZT50, ZT5000; MTD 42/50/54-inch zero-turns; Craftsman ZTS 6000/7000; Troy-Bilt Mustang 42/50.
• Verify your mower’s model number (not just the deck size) against the listed OEM numbers—fitment varies by year and series.

Key Things to Know

• Quality concerns: 3.4/5 rating with mixed reviews—some report premature failure or out-of-box defects (e.g., warped pulley, weak electromagnet). Warranty coverage is limited; inspect immediately upon arrival.
• Installation difficulty: Moderate. Requires basic tools (socket set, puller), but you must properly gap the air gap (0.012–0.020 inch) between rotor and armature using feeler gauges. No gap check = poor engagement or burn-out.
• Common gotchas: The wire connector may not match your mower’s harness—you might need to splice or replace the pigtail. Also, the clutch may require a 2-amp fuse in the PTO circuit; check yours before install.
• Torque spec: Use thread locker on the center bolt and torque to 35–45 ft-lbs; overtightening can warp the clutch hub.

Should You Buy It

This is a budget-friendly option if you need a quick replacement and can handle basic mechanical work. It’s best for users who already have a known-good OEM clutch on hand as a backup, or who are comfortable returning a defective unit. If you want guaranteed longevity and zero hassle, spend more on a genuine Cub Cadet or Warner OEM clutch instead.