John Deere AH173451 Hydraulic Cylinder Seal Kit

The AH173451 hydraulic cylinder seal kit is engineered for bucket and tilt cylinder repair on 20-25 metric ton class hydraulic excavators. The kit contains all necessary seals including rod seals, piston seals, buffer seals, wear rings, and O-rings manufactured from polyurethane (PU), PTFE, NBR, HNBR, ACM, and VMQ compounds to withstand high-pressure hydraulic fluid and extreme operating temperatures. Dimensional specifications correspond to a rod diameter of 80 mm and a bore diameter of 115 mm (P-UB-10 configuration). This kit serves as a direct replacement for John Deere OEM part number AH173451 and cross-references to Hitachi applications including ZX200LC, ZX250, ZAXIS240F-3, and ZAXIS290F-3 models. It is compatible with John Deere 6068 series engines and Isuzu 4HK1/6HK1 series engines found in the respective equipment platforms.