Free Spool Internal Oil Seal for John Deere 4000 Series Winch – AT173348

Fits Models At A Glance:

• John Deere Winches: 4000 Series

Key Notes:

• Part Numbers: AT173348
• Type: Winch free spool internal oil seal
• Weight: 0.50 lbs (0.23 kg)
• Fitment Notes: For the John Deere 4000 Series winch used on Deere crawler dozers and log skidders. Check the winch model plate on your machine before ordering.
• Related Part: For a full free spool and drum shaft rebuild, see bearing kit PV746
• Application: Seals oil inside the free spool assembly of the John Deere 4000 Series winch, keeping winch oil in and dirt and water out.
• Condition: Replacement Part for John Deere Equipment

Common Use Case or Symptoms: Use when oil is leaking from the free spool area, the winch oil level keeps dropping, or during any free spool or drum rebuild — always replace this seal when the free spool is opened up.

Why Choose Broken Tractor:

• ✅ Stops Free Spool Oil Leaks on the 4000 Series – the correct internal seal
• ✅ Pairs With the PV746 Bearing Kit – do the full free spool rebuild in one order
• ✅ Fast Shipping from a U.S.-Based Team – ready to ship from our U.S. warehouses