ACEBRI PTO Clutch for Cub Cadet Troy Bilt Craftsman: 917-05209, 917-04552, 717-04552, 717-04174, 917-04174, 917-05122 Clutch, for Cub Cadet RZT 50 LTX1045 LTX1046 LTX1042 LT1045 LT1046 PTO Clutch

What It Is

This is an aftermarket PTO (Power Take-Off) clutch that engages and disengages your mower deck blades. It’s designed for select Cub Cadet, Troy-Bilt, and Craftsman zero-turn and lawn tractors, commonly used on 42–50-inch decks.

Fitment & Compatibility

• Exact OEM cross-reference numbers: 917-05209, 917-04552, 717-04552, 717-04174, 917-04174, 917-05122. Check your old clutch for these numbers.
• Fits models: Cub Cadet RZT 50, LTX1045, LTX1046, LTX1042, LT1045, LT1046, and many Troy-Bilt/Craftsman equivalents with the same PTO system.
• Physical check: Measure the clutch diameter (approx. 4.5″) and bolt pattern (3-bolt, 2.75″ circle). Verify the shaft size (1″ or 7/8″) matches your engine crank.
• Deck size: Works with 42–50 inch decks; not for 54″+ decks on larger ZTRs.

Key Things to Know

• Quality: Aftermarket unit; users report 2–3 seasons of typical residential use. Not as durable as OEM, but fine for light-duty mowing.
• Installation difficulty: Moderate. You’ll need a puller for the old clutch, a torque wrench (specs ~25–35 ft-lbs), and basic wiring skills. Expect 1–2 hours.
• Common gotcha: The air gap must be set to 0.010–0.015″ after install. Too tight = drag; too loose = no engagement. Use a feeler gauge.
• Wiring: Usually a 2-wire connector. Polarity doesn’t matter, but ensure your mower’s PTO switch is working (test with a multimeter).

Should You Buy It

Buy this if you have a compatible Cub Cadet/Troy-Bilt/Craftsman tractor with a 42–50″ deck, need a budget replacement for a worn OEM clutch, and can handle a moderate DIY install. It’s a solid value for residential mowing, but skip it if you need heavy-duty commercial reliability or have a 54″+ deck.