585521101 PTO Clutch Compatible with Husqvarna Z142, Z146, Z246, Z246i, RZ46i, Pulley Diameter 5.35", Counter Clockwise

What It Is

The 585521101 PTO clutch engages and disengages the mower blades on select Husqvarna zero-turn mowers. It’s designed for residential/commercial mowers with a 5.35" pulley diameter and counter-clockwise rotation.

Fitment & Compatibility

Before buying, verify these three things:

• Model match: Confirmed compatible with Husqvarna Z142, Z146, Z246, Z246i, and RZ46i. Not for other Z-series models without checking.
• Pulley diameter & rotation: Must be 5.35" (measured across the pulley face) and counter-clockwise (viewed from the top). Measure yours if unsure.
• Mounting & wiring: Check that your mower’s PTO mounting bracket matches the clutch’s bolt pattern (usually 3-bolt). Also confirm the electrical connector type—some models use a 2-pin flat plug; verify yours matches.
• OEM vs aftermarket: This is an aftermarket replacement. It should match OEM part number 585521101, but always compare the spindle shaft keyway and air gap (typically 0.010–0.025") to your original.

Key Things to Know

• Quality: Users report solid performance at this price point, with good engagement and no premature wear. 5.0/5 rating from 3 reviews.
• Installation difficulty: Moderate. You’ll need basic tools (wrenches, socket set) and likely a puller to remove the old clutch. Budget 1–2 hours.
• Common gotcha: The air gap between the clutch rotor and armature must be set correctly after installation—too tight and it drags, too loose and it won’t engage fully. Use a feeler gauge.
• Warranty: Check seller’s return policy; some aftermarket clutches have limited or no warranty. This one is not a genuine Husqvarna part.

Should You Buy It

Buy this if you own a Husqvarna Z142, Z146, Z246, Z246i, or RZ46i and need a budget-friendly, direct-fit replacement for a worn or failed PTO clutch. It’s a good value for DIYers comfortable with basic mechanical work, but if you want OEM peace of mind or a longer warranty, consider the genuine Husqvarna part (usually $50–100 more).