587819701 Spindle Assembly Kit with 195945 Pulley Replaces 187281 Craftsman 42, 532187292 587820301 587253301 532192870 21549012 for Husqvarna YTH18542 YTH22V46, Craftsman YT3000 YT4000 Decks

What It Is

This spindle assembly kit (part 587819701) replaces the lower bearing housing and pulley on 42-inch and 46-inch cutting decks used in Husqvarna and Craftsman lawn tractors. It’s a direct drop-in replacement for a worn or seized spindle that causes blade wobble, vibration, or uneven cutting.

Fitment & Compatibility

Check deck size first – this kit fits 42-inch and 46-inch fabricated or stamped decks, not 48-inch or 54-inch. It replaces OEM numbers: 187281, 532187292, 587820301, 587253301, 532192870, 21549012. Compatible models include Husqvarna YTH18542, YTH22V46, Craftsman YT3000, YT4000, and many others with these deck sizes. Measure your existing spindle housing diameter – it should be 1-inch (standard for these decks). If your deck uses a 7/8-inch or 1-1/4-inch spindle, this won’t fit. Also confirm your pulley is 3.5-inch OD (the included 195945 pulley matches most 42/46 decks). If your deck has a different pulley size, you’ll need a separate pulley.

Key Things to Know

• Quality is solid for the price – bearings are sealed and pre-lubricated, but not heavy-duty commercial grade. Fine for residential mowing 1-2 acres.
• Installation is moderate – you’ll need a jack to lift the deck, socket set, and a puller to remove the old pulley. Expect 30-60 minutes per spindle.
• Common gotcha – the included pulley may not fit all decks; some models require a different pulley offset or belt groove width. Double-check your old pulley’s dimensions before swapping.
• Always replace all three spindles at once if one fails – uneven wear on the others will cause premature failure and belt alignment issues.

Should You Buy It

If you have a 42-inch or 46-inch Husqvarna or Craftsman tractor deck with a bad spindle (wobble, noise, or blade not spinning) and want a reliable, budget-friendly replacement that matches OEM specs, this kit is a good choice. It’s not for heavy commercial use, but for weekend lawn care it’ll last several seasons. Skip it if your deck uses a non-standard spindle size or if you need a different pulley offset.