532196106 Idler Pulley Replaces Husqvarna 532197379 532196106 Craftsman 197379 196106 for Husqvarna Z254F YTH22V46 RZ5424 RZ5426 YTH2348 YTH18542 YTH20K46 YTH24K48 YTH24V48 LGT2654 MZ54 Mower

What It Is

This is a 5/8-inch idler pulley (part #532196106) that guides and tensions the drive belt on select Husqvarna and Craftsman lawn tractors and zero-turn mowers. It’s commonly used on 46- to 54-inch deck models like the Z254F, YTH22V46, RZ5424, and LGT2654.

Fitment & Compatibility

Before buying, verify three things:

• Deck size: Fits 46", 48", 50", and 54" decks, but not all—double-check your mower’s deck number.
• Model number: Exact matches include Husqvarna Z254F, YTH22V46, RZ5424, RZ5426, YTH2348, YTH18542, YTH20K46, YTH24K48, YTH24V48, LGT2654, MZ54, and Craftsman equivalents. Check your owner’s manual or existing pulley for #532197379, 197379, or 196106.
• Physical dimensions: Measures 4.0" outer diameter, 5/8" bore, 0.6" wide. If your old pulley has different specs, it won’t fit.

Key Things to Know

• Quality: Aftermarket replacement, not OEM. Most users report it’s durable and runs quietly, but a few note bearing noise after heavy use. Inspect bearings before install.
• Installation: Easy—remove belt, unbolt old pulley (usually a single 15/16" bolt), swap, and re-tension belt. No special tools needed.
• Common gotchas: The bolt may be thread-locked; use penetrating oil if stuck. On some zero-turn models, you might need to remove the deck for access. Always replace the belt if it’s worn—this pulley won’t fix a stretched belt.
• Bearing type: Sealed ball bearing, no maintenance needed. If it seizes, check for debris or belt misalignment.

Should You Buy It

If you need a budget-friendly replacement for a worn or noisy idler pulley on a compatible Husqvarna or Craftsman mower, this is a solid pick. It’s not OEM, but it’s priced well and works reliably for most homeowners. Skip it if you want a factory part or have a different pulley size/bore.