532194327 Flat Idler Pulley - Replaces 194327 532-194327, Compatible with Husqvarna Poulan Craftsman YT4000 YS4500 Lawn Tractor with 42" 54" Deck

What It Is

The 532194327 Flat Idler Pulley is a replacement pulley that tensions and routes the drive belt on select Husqvarna, Poulan, and Craftsman lawn tractors with 42-inch or 54-inch decks. It keeps belt tension consistent so the blades engage properly.

Fitment & Compatibility

Check these before buying:

• Deck size: Works with 42" and 54" decks only—not 46" or 48".
• Model numbers: Fits Husqvarna YT4000, YS4500; Poulan Pro PP42T; Craftsman 917.289360, 917.289370, and similar models with a flat idler pulley (not a v-groove pulley).
• OEM cross-reference: Replaces OEM part numbers 194327, 532-194327, and 532194327.
• Measurements: Outer diameter ~3.5", inner bearing bore 5/8", overall width ~1.125". Compare to your old pulley; if dimensions differ, it won’t align with the belt.
• Belt type: Only use with a flat-back (non-V) belt section. If your deck uses a V-groove idler, this won’t work.

Key Things to Know

• Build quality: Steel pulley with a sealed bearing—holds up well in grass and debris. No plastic parts to wear out.
• Installation difficulty: Easy (15-30 minutes). Requires a socket or wrench to remove the center bolt. No special tools.
• Common gotcha: The pulley bolt can be tight or rusted. Use penetrating oil and a breaker bar if needed. Don’t pry on the pulley itself.
• Belt routing: If replacing, snap a photo of the belt path before removing the old pulley. A misrouted belt will cause slipping or premature wear.

Should You Buy It

If you have a Husqvarna, Poulan, or Craftsman tractor with a 42" or 54" deck and need a flat idler pulley, this $9 part is a solid, affordable fix. It’s a direct OEM replacement with good reviews for durability. Skip it if your deck uses a V-groove pulley or if your model isn’t listed—measure first to avoid returns.