AM124925 Idler Pulley Replacement for John Deere Mower Decks

Overview

This aftermarket AM124925 idler pulley is a replacement mower deck pulley for compatible John Deere mower deck applications.

Use this listing when your original pulley number matches AM124925. This pulley has 151 mm - 5.94 in outside diameter, 12.3 mm - 0.48 in bore, 21 mm - 0.82 in pulley width, 25.8 mm - 1.01 in pulley height.

Key Features

• Product Type: Idler Pulley
• Outside Diameter: 151 mm - 5.94 in
• Bore / Center Hole: 12.3 mm - 0.48 in
• Pulley Width: 21 mm - 0.82 in
• Pulley Height / Thickness: 25.8 mm - 1.01 in
• Aftermarket replacement pulley for mower deck belt-drive systems
• Use for compatible John Deere mower deck applications

Compatible Brands & Model Series

Common compatible model paths include:

• John Deere: 2032R 2038R 60-inch
• John Deere: 3033R 3038R 3039R 60-inch 60D"
• John Deere: 3045R 3046R 60D"
• John Deere: 3120 3320 3520 3720 60-inch
• John Deere: F620 F680 F687 ZTrak (015001 - ) 48-inch 54-inch 60-inch
• John Deere: 2210 4010 4110 4115 ( - 030000)(030001 - ) 60-inch
• John Deere: 4210 4310 4410 4510 ( - 030000)(030001 - ) 60-inch
• John Deere: 4610 4710 ( - 030000)(030001 - ) 60-inch
• John Deere: 4100 4200 4300 4400 60-inch
• John Deere: 4500 4600 4700 60-inch
• John Deere: 647 657 Quick Trak (S.N ______-010123) 60-inch
• John Deere: 667 Quick Trak (S.N ______-010124) 60-inch
• John Deere: 717 ZTrak (S.N ______-021116) 48-inch
• John Deere: 727 737 ZTrak (S.N ______-020000) 54-inch
• John Deere: 737 ZTrak (S.N ______-020000) 60-inch
• John Deere: 757 ZTrak 54-inch 60-inch
• John Deere: M653 M655 M665 60-inch

Replaces OEM Part Numbers

• AM124925

Common Symptoms of a Worn Deck Pulley

• Mower deck belt squealing, slipping, or jumping off track
• Visible pulley wobble or uneven belt tracking
• Grinding, rattling, or bearing noise near the deck pulley
• Reduced blade speed or inconsistent cut quality caused by poor belt tension

Why Buy From PTO Direct USA?

• Fast USA shipping
• Fitment-focused replacement parts support
• Clear part-number matching to help reduce wrong-part orders
• Replacement mower deck parts for homeowners, shops, and landscape crews

Need Help Confirming Fitment?

If you are not sure this is the correct pulley, send us your mower model number, deck size, and the part number from your original pulley. We can help compare the replacement path before you order.

FAQ

How do I confirm this pulley fits my mower?

Start by matching the OEM pulley number on your original part. Then compare the outside diameter, bore or center-hole size, pulley width, belt profile, deck layout, and mower model.

Can I order by appearance alone?

No. Similar-looking deck pulleys can have different bore sizes, offsets, belt profiles, and deck applications. Match the part number and dimensions first.

What causes a mower deck pulley to fail?

Common causes include worn bearings, belt misalignment, impact damage, seized hardware, or long-term wear from deck belt tension.

Need another pulley? Browse the full mower deck pulley collection for additional replacement options.