Electric PTO Clutch for John Deere STX38 STX46 Troy-Bilt 13095 Woods R1540 Warner 5217-35 5217-6 Ariens EZR Series 160889 532160889 1772388 717-1459 917-1459 5217-35

What It Is

This is an electric PTO (power take-off) clutch that engages and disengages the mower deck blades. Designed for compact lawn tractors and zero-turn mowers from John Deere, Troy-Bilt, Ariens, and Woods, it replaces OEM part numbers 160889, 532160889, 1772388, 717-1459, 917-1459, and Warner 5217-35/5217-6.

Fitment & Compatibility

Before buying, verify these three things:

• Physical dimensions: Measure your existing clutch’s bolt hole pattern (typically 3.75” center-to-center), shaft diameter (5/8” or 3/4”), and overall height. This clutch fits most 5/8” shaft applications.
• Model cross-reference: Confirmed for John Deere STX38/STX46, Troy-Bilt 13095, Woods R1540, and Ariens EZR Series. It also fits many Craftsman, Husqvarna, and Murray tractors using similar Warner-style clutches.
• Electrical: 12V DC; check your mower’s wiring harness connector—this clutch has a standard two-pin flat connector. If your mower uses a different plug, you’ll need to splice or adapt.
• OEM vs aftermarket: This is a direct replacement aftermarket unit. It’s not OEM John Deere or Ariens, but uses the same Warner internal design.

Key Things to Know

• Quality: Single review at 5.0 stars, but limited feedback. Aftermarket PTO clutches can vary; check if it includes a new bearing and pulley (this one usually does).
• Installation difficulty: Moderate. You’ll need a socket set, torque wrench, and possibly a puller to remove the old clutch from the crankshaft. Allow 1–2 hours.
• Common gotchas: The air gap between clutch rotor and armature must be 0.010–0.015” after installation—too tight or loose causes engagement failure. Also, ensure the clutch is fully seated on the shaft before tightening the center bolt (usually 35–45 ft-lbs).
• Warranty: Check seller’s policy—many aftermarket clutches carry only 90-day to 1-year coverage.

Should You Buy It

Buy this if you need a budget-friendly replacement for a failed PTO clutch on a John Deere STX, Troy-Bilt, or Ariens EZR mower, and you’re comfortable with basic mechanical work. It’s a good value for the price, but skip it if you want an OEM part for a commercial-use machine or need a warranty longer than 1 year.