Maxpower 332515B Idler Pulley for John Deere, Replaces OEM no. GY20067, Gold

What It Is

The Maxpower 332515B is an aftermarket idler pulley designed to maintain belt tension on the mower deck of select John Deere lawn tractors. It replaces OEM part GY20067 and is used in the spindle or belt routing system.

Fitment & Compatibility

Check your deck model first. This pulley fits John Deere 48-inch and 54-inch stamped steel decks (e.g., 48C, 54C, 48-inch Edge) on select X300, X500, and D100 series tractors. Also fits some LA, L, and LX series models. Measure your original pulley: the 332515B has a 3.5-inch outer diameter, a 0.5-inch bore, and a 0.31-inch flange thickness. Verify your belt width (commonly 1/2-inch or 5/8-inch) to ensure the groove matches. If your OEM pulley is GY20067, this is a direct replacement. Not for 42-inch decks or zero-turn mowers.

Key Things to Know

• Quality vs OEM: Users report comparable durability to John Deere’s GY20067 at roughly half the price. The bearing is sealed and pre-lubricated.
• Installation: Easy for a DIYer. You’ll need a socket wrench and possibly a pry bar to release belt tension. No special tools required. Expect 15–30 minutes.
• Common gotcha: The pulley uses a shoulder bolt (not included). Reuse your original bolt, but check for wear. A damaged bolt can cause premature bearing failure.
• Noise check: If the old pulley was squeaking or wobbling, this will fix it. If the new one makes noise, the belt tension or alignment is off.

Should You Buy It

If you own a compatible John Deere with a 48- or 54-inch stamped deck and need a reliable, budget-friendly replacement for a worn or noisy idler pulley, this is a solid choice. It’s not for commercial use or odd-size decks, but for home lawn care, it’s a proven value.