ILONPA 132-9420 Flat Idler Pulley Replaces 106-2175 for Exmark Toro 32 38 42 50 and 54 inch Deck Quest E-Series S-Series Timecutter SS 3200 SS 3216 SW 3200 ZS 3200S (1 Pack)

What It Is

The ILONPA 132-9420 is a flat idler pulley that guides and tensions the mower deck belt on select Toro and Exmark zero-turn and riding mowers. It replaces OEM part numbers 132-9420 and 106-2175, and is designed for decks ranging from 32 to 54 inches on models like the Toro Timecutter, Quest, E-Series, S-Series, and Exmark SS/ZS 3200 series.

Fitment & Compatibility

Before buying, verify three things:

• Deck size: Fits 32, 38, 42, 50, and 54-inch decks. Measure your deck width if unsure.
• Model series: Confirmed for Toro Timecutter SS 3200/3216, SW 3200, ZS 3200S, Quest, E-Series, S-Series, and Exmark 3200 series. Not for older or non-listed models.
• Measurements: OEM pulley has a 4-inch outer diameter, 0.625-inch bore (center hole), and 0.75-inch width. Measure your old pulley to confirm—if your bore is 0.5 or 0.75 inches, this won’t fit.
• OEM cross-reference: Replaces Toro 132-9420 and 106-2175. If your mower uses a different number, check the ILONPA listing for full compatibility list.

Key Things to Know

• Quality vs. OEM: It’s an aftermarket pulley—decent for the price, but the bearing may not last as long as a genuine Toro part. Expect 1-2 seasons under normal use.
• Installation difficulty: Easy. Remove belt, unbolt old pulley (usually a single bolt), swap, and re-route belt. No special tools needed.
• Common gotcha: The pulley is flat, not grooved. If your deck uses a grooved idler pulley (common on some 50-54 inch decks with double belts), this won’t work.
• Bearing check: Spin the pulley by hand before installing—if it feels rough or noisy, return it immediately. Some units have had dry bearings out of the box.

Should You Buy It

If you’re on a budget and need a quick fix for a flat idler pulley on a Toro or Exmark 3200-series deck, this is a solid value at $12.99. It’s not built to OEM durability, but for occasional home use or as a spare, it’ll get the job done. If you mow commercially or want maximum lifespan, stick with a genuine Toro pulley.