GELASKA AM37249 Idler Pulley Replaces AM34249 AM107468 AM37442 AM35862 AM103296 M81677 TCA22982 for John Deere 265 325 345 X300 X500 STX38 GT235 GT245 GT275 GX345 LX188 F525 RX75 Scotts S2554 Decks

What It Is

The GELASKA AM37249 is an aftermarket idler pulley that guides and tensions the drive belt on select John Deere and Scotts lawn tractor decks. It’s a direct replacement for worn or noisy pulleys that cause belt slipping or deck vibration.

Fitment & Compatibility

Check three things before buying:

1. Deck size & model: Fits John Deere 38”, 42”, 48”, 54” decks on models like 265, 325, 345, X300, X500, STX38, GT235, GT245, GT275, GX345, LX188, F525, RX75, and Scotts S2554. Not for all decks—verify your deck model number (stamped on top).
2. OEM cross-references: Replaces AM34249, AM107468, AM37442, AM35862, AM103296, M81677, TCA22982. If your original part number is one of these, it fits.
3. Physical dimensions: ~4” outer diameter, 3/8” belt width, 5/8” bore. Measure your old pulley’s OD, bore, and belt groove width—if they match, you’re good.

Key Things to Know

• Quality: Metal construction with sealed bearing—holds up well for the price. Some users report slightly less durability than OEM, but fine for homeowner use.
• Installation: Easy DIY job (remove belt, swap pulley, reinstall). Requires 1/2” or 5/8” socket/wrench. No special tools.
• Common gotchas: The center bolt may be tight—use penetrating oil if rusted. Ensure the pulley spins freely before installing. Double-check belt routing after replacement; misrouting causes rapid wear.
• Noise: If your old pulley is squeaking or rough, this will fix it. If noise persists after replacement, check belt tension and other pulleys.

Should You Buy It

If you need a budget-friendly replacement for a worn idler pulley on a John Deere or compatible Scotts deck, this is a solid choice for most homeowners. It’s not heavy-duty enough for commercial mowing, but for occasional lawn care, it delivers reliable performance at half the OEM price.