2 Pack 587819701 Spindle Assembly with 532197473 Spindle Pulley and Idler Pulley 584453101 Belt 1/2x106 Replace 532187281 587820301 532187292 532195945 for YTH22V46 YTH20K46 YTH21K46 Mowers

What It Is

This is a 2-pack of spindle assemblies (part 587819701) that includes the 532197473 spindle pulley and idler pulley, plus a 1/2x106-inch belt (584453101). It’s designed for replacing worn spindles and belts on Husqvarna YTH22V46, YTH20K46, and YTH21K46 mowers with 46-inch decks.

Fitment & Compatibility

• Deck size: 46-inch cutting deck only.
• Models: Fits Husqvarna YTH22V46, YTH20K46, YTH21K46 (and some Craftsman/MTD variants with the same deck). Cross-references OEMs: 532187281, 587820301, 532187292, 532195945.
• Check before buying: Measure your belt—1/2-inch wide, 106-inch length. Verify spindle pulley diameter (usually 4 inches) and bolt pattern (3-hole, 2.5-inch center). If your deck uses a different idler or belt length, this won’t fit.
• Aftermarket note: This is a replacement set, not OEM Husqvarna. Quality and tolerances are generally good, but confirm your deck’s spindle shaft is 5/8-inch (common for these models).

Key Things to Know

• Installation difficulty: Moderate. You’ll need a socket set, wrench, and possibly a puller for stuck pulleys. Plan 1-2 hours per spindle.
• Belt tension: The 1/2x106 belt is tight; you may need to release the idler arm to install. Check belt routing diagram for your model.
• Common gotcha: Spindle bearings are sealed but can fail early if deck debris isn’t cleaned. Grease fittings are absent—replace as a unit when bearings get noisy.
• Durability: Pulleys are stamped steel, not cast. Fine for residential use but may warp under heavy commercial mowing.

Should You Buy It

Buy this if you have a Husqvarna YTH-series with a 46-inch deck and need a cost-effective spindle-and-belt refresh for a single mower. It’s a solid value for DIY homeowners, but skip it if you need OEM parts for warranty requirements or have a different deck size.