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90 mm Bore Seal Kit for John Deere 310SL, 333G, 850J, 770G Cylinders – AHC19979

SKU:
AHC19979
FitsModel:
310E-315SE, 310G-315SG, 310SJ-325J, 310SL-325SL, 320P, 410D-410P, 510D, 331G-335P, 450G-650G, 700P, 750J-750P, 764, 850J-850X, 620G-872P, 744H-744X, 824J-824X, 260E/P, 310P, 762B, 1510C-2112DC, 337E, 437E, 437G, 460D, 640L-948L-III, 753J, 759J
ListDescription:
90 mm Hydraulic Cylinder Bore Seal Kit
90 mm bore seal kit AHC19979 for John Deere 310SL backhoe cylinder
Part # AHC19979

Fits Models At A Glance:

  • John Deere Backhoe Loaders (E, G & J Series): 310E, 310SE, 315SE, 310G, 310SG, 315SG, 310SJ, 310SJ TMC, 310TJ, 315SJ, 325J, 410D, 410E, 410G, 410J, 410J TMC, 410K TC, 510D
  • John Deere Backhoe Loaders (L & P Series): 310SL, 310SL HL, 315SL, 325SL, 410L, 320P, 410P
  • John Deere Compact Track Loaders: 331G, 333G, 331P, 333P, 335P
  • John Deere Skid Steer Loaders: 332G, 334P
  • John Deere Crawler Dozers & Loaders (G Series): 450G, 455G, 550G, 555G, 650G
  • John Deere Crawler Dozers: 700P, 750J, 750K, 750L, 750P, 764, 850J, 850J-II, 850JR, 850K, 850L, 850P, 850X
  • John Deere Motor Graders: 620G, 620GP, 620P, 622G, 622GP, 622P, 670G, 670GP, 670P, 672G, 672GP, 672P, 770G, 770GP, 770P, 772G, 772GP, 772P, 870G, 870GP, 870P, 872G, 872GP, 872P
  • John Deere 4WD Wheel Loaders: 744H, 744J, 744K, 744L, 744P, 744X, 824J, 824K, 824L, 824X
  • John Deere Articulated Dump Trucks: 260E, 260P, 310E, 310P
  • John Deere Scrapers: 762B elevating scraper; 1510C, 1512C, 1810C, 1812C, 1814C, 2112C, 1510DC, 1810DC, 1812DC, 1814DC, 2112DC Carry-All scrapers
  • John Deere Forestry – Knuckleboom Log Loaders: 337E, 437E, 437G
  • John Deere Forestry – Skidders: 460D, 640L, 640L-II, 640L-III, 648L, 648L-II, 648L-III, 748L-II, 748L-III, 848L, 848L-II, 848L-III, 948L, 948L-II, 948L-III, 768L-II, 768L-III
  • John Deere Forestry – Tracked Feller Bunchers & Harvesters: 753J, 753JH, 759J, 759JH
  • John Deere Forestry – Felling Heads: FD18, FD22, FD22B, FD45, FL100, FR22B, FR24B, FS22B, FS24, FS50
  • John Deere 4WD Tractors: 9100, 9200, 9300, 9400, 9120, 9220, 9320, 9420, 9520, 9620

Key Notes:

  • Part Numbers: AHC19979
  • Replaces: AH212096, AH149843, RE20430
  • Kit Type: Bore seal kit — seals the piston. Rod (gland) seals are not included; order the rod seal kit separately if needed.
  • Bore Size: 90 mm (3-9/16 in)
  • Cylinder Types: 90 mm bore bucket, multi-purpose, steering and tilt cylinders
  • Used In Cylinders: AH138931, AH147722, AH147888, AH148443, AH148736, AH150098, AH150103, AH151379, AH154793, AH207328, AH210901, AH211073, AH213303, AH216338, AH219636, AH220108, AH221187, AH222727, AHC10169, AHC10536, AHC11321, AHC18283, RE20440, RE20826, RE20829, RE24865, RE25622, RE26990, RE28353, RE35814, RE38227
  • Weight: 0.28 lbs (0.13 kg)
  • Fitment Note: This kit fits the 90 mm bore cylinders on the machines listed — not every cylinder on each machine. Match your cylinder part number (stamped on the barrel) to the list above, or confirm a 90 mm bore, before ordering.
  • Related Part: On the 331G, 332G and 333G, this kit reseals the bucket tilt cylinder AHC18283
  • Condition: Replacement Part for John Deere Equipment

Common Use Case or Symptoms: Use when the cylinder drifts down under load, the bucket or blade won't hold position, or the cylinder is slow or weak with no visible external leak — worn piston seals let oil bypass inside the cylinder.

Why Choose Broken Tractor:

  • ✅ Cylinder Part Numbers Listed So You Can Match Yours – 31 John Deere cylinders covered
  • ✅ One 90 mm Piston Kit Across Deere's Lineup – replaces AH212096, AH149843 and RE20430
  • ✅ Fast Shipping from a U.S.-Based Team – ready to ship from our U.S. warehouses
$39.00

Shipping calculated at checkout. If any item in your order is temporarily unavailable, we'll contact you to arrange a back-order or refund — whichever you prefer.

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Product: Category: Brand: Head Title: 90 mm Cylinder Bore Seal Kit | Broken Tractor | AHC19979