8TEN Gen 3 Electric PTO Clutch for Craftsman Cub Cadet MTD RZT42 RZT50 917-04622 717-04183 5219-99 917-04183

What It Is

The 8TEN Gen 3 Electric PTO Clutch engages and disengages your mower deck blades via an electromagnetic coil. It’s designed for zero-turn and lawn tractors from Craftsman, Cub Cadet, and MTD, typically on 42" and 50" decks.

Fitment & Compatibility

Before buying, verify your mower’s model number (e.g., RZT42, RZT50) and cross-reference OEM part numbers: 917-04622, 717-04183, 5219-99, or 917-04183. This clutch fits most Cub Cadet Z-Force, RZT, and MTD-built Craftsman zero-turns. Measure the shaft diameter (typically 1” or 1-1/8”) and bolt pattern (usually 3 holes on 4” centers). Check your old clutch’s pulley diameter (3.5” to 4.5”) to ensure belt alignment. This is an aftermarket replacement, not OEM—works fine but double-check your specific deck and engine model.

Key Things to Know

• Quality: Gen 3 version has improved bearings and coil sealing vs. earlier 8TEN models, reducing failure from debris or moisture.
• Installation: Moderate difficulty—requires removing the old clutch (often a puller tool) and torquing the center bolt to 45-55 ft-lbs. No special wiring harness needed; plugs match OEM.
• Gotchas: Some users report the clutch may need a 1/4” spacer if the pulley sits too low against the deck. Test engagement before full reassembly.
• Noise: A slight whine when engaged is normal; grinding or slipping means incorrect alignment or belt tension.

Should You Buy It

Buy this if you have a Craftsman, Cub Cadet, or MTD zero-turn with a 42” or 50” deck and need a reliable, budget-friendly replacement for a failed OEM clutch. It’s not for heavy commercial use, but for residential mowing, it’s a solid value at $140. Avoid if you want exact OEM fit or have a non-standard shaft/bolt pattern.