Flat Idler Pulley for Craftsman Husqvarna Poulan 196104 197380 532196104 532197380 2748GLS GT52XLS LGT2554 LGT2654 2754GLS YTH24K48 Lawn Mowers

What It Is

This flat idler pulley (OEM part numbers 196104/197380) routes and tensions the mower deck belt on select Craftsman, Husqvarna, and Poulan lawn tractors with 48” or 50” cutting decks. It replaces a worn or seized pulley that causes belt squealing, slipping, or deck disengagement.

Fitment & Compatibility

• Check your OEM number: Confirm your original pulley matches 196104, 197380, 532196104, or 532197380. This is the most common flat idler on Husqvarna-based decks.
• Deck size & model: Fits decks listed for GT52XLS, LGT2554, LGT2654, 2754GLS, YTH24K48, and similar 48”–50” fabricated or stamped decks. Not for 42” or 54” decks without verifying.
• Measurements: Outer diameter = 3.75”, inner bearing bore = 5/8”, overall thickness = 0.75”. Measure your old pulley to confirm.
• Belt compatibility: Uses a 1/2” or 5/8” wide deck belt—check your belt width. This pulley does not include a belt or mounting bolt.
• Aftermarket note: This is an aftermarket replacement, not OEM Craftsman. It’s functionally identical but may have slight finish differences.

Key Things to Know

• Bearing quality: The sealed ball bearing in this pulley is pre-lubricated and typically outlasts the belt. Spin it by hand before installing—if rough, return it.
• Installation difficulty: Easy (30 minutes). Remove the deck, take off the old pulley’s retaining bolt or clip, slide the new one on, and re-tighten. No special tools needed.
• Common gotcha: The pulley’s flat face must face the belt, not the deck. Installing it backward will cause belt misalignment and premature wear.
• Check the bolt: The mounting bolt is often 5/16”-18 or 3/8”-16. If yours is stripped, replace it—don’t reuse.

Should You Buy It

If your deck belt is slipping, squealing, or the old pulley is wobbly or seized, this is a direct, cost-effective fix. It’s right for DIY owners of Craftsman, Husqvarna, or Poulan tractors with 48”–50” decks who want a reliable aftermarket alternative to OEM without paying dealer markup. Skip it if you need a pulley for a 42” deck or an AYP/MTD spindle—this won’t fit.