Upgrade PTO Clutch Compatible with AYP 145028 160889 Husqvarna Sears Craftsman 532145028 532160889 Snapper Simplicity 7053740S 5-3740 Warner 5217-35 5217-46 5217-76 5217-9 Ariens Gravely 03601800
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🛒 See Price on AmazonWhat It Is
This is an aftermarket electric PTO (power take-off) clutch that engages and disengages the mower blades on lawn tractors and zero-turn mowers. It’s designed as a direct replacement for a wide range of AYP, Husqvarna, Craftsman, Snapper, Simplicity, Ariens, and Gravely models.
Fitment & Compatibility
Cross-reference these OEM numbers first: 145028, 160889, 532145028, 532160889, 7053740S, 5-3740, 5217-35, 5217-46, 5217-76, 5217-9.
Physical check: Measure your existing clutch’s shaft diameter (typically 1” or 1-1/8”), bolt pattern (2 or 3-bolt), and overall height. Most AYP/Husqvarna tractors use a 1” shaft with a 3-bolt pattern, but confirm.
Deck size: Common on 42” to 54” decks, but not universal—ensure your engine crankshaft length matches (usually 3.5” to 4”).
Note: This is aftermarket—not OEM Craftsman/Husqvarna. Some units may require minor wiring adaptation if your original had a different connector.
Key Things to Know
- Installation difficulty: Moderate. Requires basic mechanical skills, a puller (often included), and a torque wrench for the center bolt (typically 45-55 ft-lbs).
- Quality: Mixed reviews—some report reliable long-term use; others note premature bearing failure or engagement noise after a season. Check warranty (usually 1 year).
- Common gotcha: The clutch gap (air gap between rotor and armature) must be 0.010–0.020” after install. Too tight = drag; too loose = won’t engage.
- Wiring: Most come with a standard two-pin connector, but verify polarity if your tractor uses a ground-switched circuit (common on older Craftsman).
Should You Buy It
Buy this if you need a budget-friendly replacement for a 42–54” deck tractor and are comfortable with basic mechanical work and occasional aftermarket tolerance issues. Skip it if you want OEM durability for commercial or heavy-use mowing—spend more on a Warner or OEM unit.
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