AUC11584 Idler Pulley Replacement for John Deere Mower Decks

Overview

This aftermarket AUC11584 idler pulley is a replacement mower deck pulley for compatible John Deere mower deck applications.

Use this listing when your original pulley number matches AUC11584 or one of the replacement numbers below. This pulley has 200 mm - 7.87 in outside diameter, 12.6 mm - 0.49 in bore, 32.5 mm - 1.27 in pulley width, 38.8 mm - 1.52 in pulley height.

Key Features

• Product Type: Idler Pulley
• Outside Diameter: 200 mm - 7.87 in
• Bore / Center Hole: 12.6 mm - 0.49 in
• Pulley Width: 32.5 mm - 1.27 in
• Pulley Height / Thickness: 38.8 mm - 1.52 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: Z710A ZTrak Mower 48-inch 54-inch
• John Deere: Z720A ZTrak Mower 60-inch
• John Deere: Z810A Professional ZTrak 48-inch 54-inch
• John Deere: Z820A Professional ZTrak 48-inch 54-inch
• John Deere: Z830A Professional ZTrak 54-inch 60-inch
• John Deere: Z840A Professional ZTrak 54-inch 60-inch
• John Deere: Z850A Professional ZTrak 60-inch 72-inch
• John Deere: Z860A Professional ZTrak 60-inch 72-inch
• John Deere: Z910A ZTrak Pro Series Mower 48-inch 54-inch
• John Deere: Z915B ZTrak B Series Mower 48-inch 54-inch 60-inch
• John Deere: Z915E ZTrak E Series Mower 48-inch 54-inch 60-inch
• John Deere: Z920A ZTrak Pro Series Mower 48-inch 54-inch 60-inch
• John Deere: Z920M ZTrak M Series Mower 48-inch 54-inch 60-inch
• John Deere: Z920R ZTrak R Series Mower 48-inch 54-inch
• John Deere: Z925A EFI Pro ZTrak Mower 60-inch
• John Deere: Z925M EFI Flex Fuel ZTrak M Series Mower 54-inch 60-inch
• John Deere: Z930A ZTrak Pro Series Mower 60-inch 72-inch
• John Deere: Z930M EFI ZTrak M Series Mower 54-inch 60-inch
• John Deere: Z930R ZTrak R Series Mower 54-inch 60-inch
• John Deere: Z945M EFI ZTrak M Series Mower 60-inch 72-inch
• John Deere: Z950A ZTrak Pro Series Mower 60-inch 72-inch
• John Deere: Z950M ZTrak M Series Mower 60-inch 72-inch
• John Deere: Z950R ZTrak R Series Mower 60-inch 72-inch
• John Deere: Z955M EFI ZTrak M Series Mower 60-inch 72-inch
• John Deere: Z955R EFI ZTrak Commercial Mower 60-inch
• John Deere: Z960M ZTrak M Series Mower 60-inch 72-inch
• John Deere: Z960R ZTrak R Series Mower 60-inch 72-inch
• John Deere: Z970R ZTrak R Series Mower 72-inch
• John Deere: Z994R ZTrak Mower (Diesel) 54-inch 60-inch

Replaces OEM Part Numbers

• AUC11584
• TCA17135

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.