Winch Piston and Rod Packing Seal for John Deere 4000 Series Winch – R46218

Fits Models At A Glance:

• John Deere Crawler Dozers (J Series): 450J, 550J, 650J — Serial Number 159987 and Up; 700J — Serial Number 139436 and Up
• John Deere Crawler Dozers (K Series): 450K — Serial Number 304771 and Up; 550K, 650K, 700K
• John Deere Crawler Dozers (L & P Series): 700L — Serial Number 383562 and Up; 450P, 550P, 650P — Serial Number 01837 and Up; 700P — Serial Number 11340 and Up
• John Deere Crawler Dozers: 714PR

• John Deere Forestry – D Series Skidders: 360D, 460D, 560D, 660D
• John Deere Forestry – E Series Skidders: 540E, 640E, 740E, 548E, 648E, 748E
• John Deere Forestry – G Series Skidders: 540G — Before Serial Number 624870; 548G — Before Serial Number 578013; 640G — Before Serial Number 612567; 648G — Before Serial Number 612635; 740G, 748G, 848G
• John Deere Forestry – G-II Series Skidders: 540G-II, 548G-II, 640G-II, 648G-II, 748G-II
• John Deere Forestry – G-III Series Skidders: 540G-III, 548G-III, 640G-III, 648G-III, 748G-III
• John Deere Forestry – H Series Skidders: 540H, 548H, 640H, 648H, 748H, 848H, 648HTJ, 748HTJ, 848HTJ
• John Deere Forestry – L Series Skidders: 640L, 648L, 748L, 848L, 948L, 640L-II, 648L-II, 748L-II, 848L-II, 948L-II, 640L-III, 648L-III, 748L-III, 848L-III, 948L-III
• John Deere Forestry – Bogie Skidders: 768L-II, 768L-III

Key Notes:

• Part Numbers: R46218
• Type: Piston and rod packing seal
• Winch Compatibility: John Deere 4000 Series winch (Models 40, 4000 and 4000S)
• Weight: 0.02 lbs (0.01 kg)
• Serial Number Notes: On the J, K, L and P Series dozers, fits machines from the serial numbers shown above. On the 540G, 548G, 640G and 648G, fits machines built before the serial numbers shown above. All other models listed fit every serial number.
• Related Parts: Winch clutch piston R81735, clutch sealing piston ring R33248, clutch input shaft bearing AT139681, side cover O-ring T51625, free spool internal oil seal AT173348
• Application: Seals hydraulic oil at a piston and rod inside the John Deere 4000 Series winch, keeping pressure where it's needed and oil inside the winch.
• Condition: Replacement Part for John Deere Equipment

Common Use Case or Symptoms: Use when the winch leaks oil, loses hydraulic pressure, or responds slowly, or during any winch rebuild — a hardened or torn packing seal lets oil bypass and weakens winch operation.

Why Choose Broken Tractor:

• ✅ Stops Internal Oil Bypass in the 4000 Series Winch – restores hydraulic pressure
• ✅ Completes Your Winch Seal Rebuild – order with the piston, rings, bearing and O-rings
• ✅ Fast Shipping from a U.S.-Based Team – ready to ship from our U.S. warehouses