11990437 14589132 17265005 Hydraulic Cylinder Excavator Arm Boom Bucket Seal Kit

11990437 14589132 17265005 Hydraulic Cylinder Excavator Arm Boom Bucket Seal Kit

Part Numbers 11990437, 14589132, 17265005 – Hydraulic Cylinder Seal Kit for Excavator Arm, Boom, and Bucket

When maintaining the hydraulic system of an excavator or loader, the seal kit for the arm, boom, and bucket cylinders is a critical component. Three part numbers stand out for their reliability: 11990437, 14589132, and 17265005. Each of these numbers corresponds to a specific seal configuration designed for heavy-duty cycle applications. For instance, 11990437 is commonly used in the boom cylinder to prevent drift and leakage. A loader operator should verify 11990437 when replacing worn seals on the main lifting cylinder. Similarly, 14589132 is tailored for the arm cylinder, ensuring smooth retraction and extension under high pressure. The bucket cylinder often relies on 17265005 to withstand abrasive loads and impact forces. Technicians rebuilding an excavator cylinder must cross-check 14589132 against the original equipment specifications to avoid mismatched seals. Meanwhile, 17265005 is frequently listed in maintenance kits for compact loaders and mid-size excavators. For a complete hydraulic cylinder overhaul, having 11990437 on hand is essential, especially if the boom shows signs of creeping. All three part numbers—11990437, 14589132, and 17265005—are manufactured to resist extrusion and high-temperature degradation. When ordering, always confirm that 14589132 includes the rod wiper and buffer seal. The bucket circuit may require 17265005 to be paired with new piston rings. In summary, the seal kits referenced by 11990437, 14589132, and 17265005 provide comprehensive coverage for the arm, boom, and bucket cylinders on most excavator and loader models. Using genuine 11990437 components reduces downtime and prevents cross-contamination. Always consult your machine’s serial number to validate 14589132 or 17265005 compatibility before installation.