4662895 466-2895 1864311 186-4311 Boom Arm Bucket Hydraulic Cylinder Excavator Seal Kit Swing Motor Kit

4662895 466-2895 1864311 186-4311 Boom Arm Bucket Hydraulic Cylinder Excavator Seal Kit Swing Motor Kit

Version 1 (Swing Motor & Boom Integration Focus)

Excavator swing motor and boom hydraulic cylinder rebuilds demand the seal kit containing 4662895 for rotary joint protection. The bucket arm cylinder configuration uses 466-2895 to maintain pressure during continuous 360-degree swing operations. When servicing the boom lift circuit, part number 1864311 provides critical sealing for the swing motor output shaft. The swing motor kit identified as 186-4311 complements 4662895 by sealing the motor housing end cap. Excavator operators notice reduced swing oscillation after installing 4662895 and 1864311 together. The boom arm system featuring 466-2895 and 186-4311 shows consistent torque delivery during heavy digging cycles. Every swing motor overhaul should verify that 4662895, 466-2895, 1864311, and 186-4311 are all present before reassembly.

Version 2 (Application & Swing Motor Compatibility Focus)

Heavy equipment workshops stock 4662895 as the primary seal for excavator boom, arm, and swing motor hydraulic circuits. The 466-2895 hydraulic cylinder loader kit pairs effectively with 1864311 for bucket cylinder gland retention. When rebuilding a swing motor, include 186-4311 to prevent internal cross-port leakage between motor sections. Part number 4662895 (also referenced as 466-2895 in some catalogs) protects the boom cylinder from pressure spike damage during swing acceleration. The arm cylinder using 1864311 and 186-4311 demonstrates stable extension speeds under variable swing loads. Excavator bucket circuits fitted with 4662895 and 466-2895 show zero weeping after 2000 swing hours. Field technicians prefer 4662895, 466-2895, 1864311, and 186-4311 for comprehensive boom-to-swing motor sealing coverage.