PTO Clutch for AYP Husqvarna Snapper Simplicity Replaces 180505 583389701 1686883SM 1736105SM 1687296SM 532180505

What It Is

This is an electric PTO (power take-off) clutch that engages and disengages the mower blades on select AYP, Husqvarna, Snapper, and Simplicity lawn tractors. It replaces OEM part numbers 180505, 583389701, 1686883SM, 1736105SM, 1687296SM, and 532180505.

Fitment & Compatibility

Before buying, verify three things:

• Mounting pattern: This clutch uses a 3-bolt pattern (not 2 or 4). Measure bolt hole spacing – center-to-center should be roughly 2.5 inches.
• Shaft size: The crankshaft must be 1 inch in diameter with a 3/16-inch keyway. Check your mower’s crankshaft end for wear or damage.
• Deck size & model: Fits most 42–54 inch decks on Husqvarna GTH, YTH, LGT series; Snapper 280, 281, 300 series; Simplicity Broadmoor, Regent, and Prestige; and AYP/Craftsman tractors from the early 2000s onward. Always cross-reference your mower’s model number with the OEM part numbers listed.

Key Things to Know

• Quality: Aftermarket clutch, not OEM. Most users report it works well for residential use, but some note slightly louder engagement than original.
• Installation difficulty: Moderate. Requires basic tools (socket set, torque wrench) and ability to remove the old clutch, align the keyway, and torque the center bolt to 30-40 ft-lbs. A puller may be needed if the old clutch is seized.
• Common gotchas: The wiring harness may be shorter than OEM – plan to splice or extend if needed. Also, the air gap between the rotor and armature should be 0.010–0.015 inches; check with a feeler gauge after installation.
• Warranty: Typically 1 year. Keep your receipt and check the seller’s return policy.

Should You Buy It

If you need a budget-friendly replacement for a residential mower and are comfortable with a moderate DIY install, this clutch offers solid value. Avoid it if you have a commercial-grade mower or want OEM fit/finish – in those cases, spend more on a genuine Husqvarna or Electrolux part.