Cat 420D-442D Backhoe Loader Lift Cylinder Seal Kit 2600273 – 2" Rod x 85mm Bore

Fits Models At A Glance:

• Caterpillar Backhoe Loaders – D Series: 420D, 428D, 430D, 432D, 438D, 442D

Key Notes:

• Part Number(s): 2600273 (260-0273)
• Application: Seal kit for the loader lift cylinder with a 2" rod x 85 mm bore — cylinder groups 180-7482, 180-7490, 183-2856, 192-3791, 196-4523
• Dimensions: 2" rod x 85 mm bore
• Serial Number Notes: This is the kit for the early D-series loader lift cylinder (3054 and 3054B engine machines). Later 420D After Serial Number BLN10300 and 430D After Serial Number BNK05900 / BML04800 switched to a 50 mm rod cylinder that takes seal kit 2432276. 432D is cataloged for all serial prefixes (BLD, TDR, WEP).
• Interchange Numbers: Supersedes 2465926 and 2410110 per MinnPar seal kit catalog
• Quantity: Reseals one cylinder — order two for both lift arms
• Condition: Aftermarket replacement part

Common Use Case or Symptoms:

Use when the loader arms settle under a loaded bucket, the lift cylinder rods streak with oil, or the loader lifts unevenly on a Cat 420D, 428D or 442D.

Why Choose Broken Tractor:

• ✅ 2" vs 50 mm sorted out for you — Cat used two lift cylinders on the D series that look identical — this listing tells you which serial prefixes take the 2" kit.
• ✅ Cylinder numbers listed — Match the group number stamped on the cylinder barrel (180-7482, 180-7490, 183-2856, 192-3791 or 196-4523) and you are done.
• ✅ Twenty years on Cat backhoes — Broken Tractor has matched seal kits to these machines since the D series was new.