707-99-57160 Arm Cylinder Seal Kit 95mm Rod 135mm Bore for Komatsu PC200-7 PC210LC-7

707-99-57160 Arm Cylinder Seal Kit for Komatsu Excavators

707-99-57160 is an arm hydraulic cylinder seal kit for Komatsu excavators including PC200-7, PC200LC-7, PC210-7, PC210LC-7 and other compatible models. Designed for arm cylinder repair and rebuilding, this seal kit replaces the main sealing components used inside the hydraulic cylinder and helps restore reliable hydraulic sealing performance.

The applicable hydraulic cylinder configuration uses a 95 mm piston rod and 135 mm cylinder bore. Before ordering, please confirm the 707-99-57160 part number and excavator model to ensure correct fitment.

Compatible Komatsu Excavator Models

For following models:

Komatsu Excavator PC200-7, PC200LC-7, PC200LC-7L, PC210-7, PC210LC-7, PC210-7K, PC210LC-7K, PC210NLC-7K, PC220LC-7, PC228US-3, PC228USLC-3, PC230NHD-7K

707-99-57160 Seal Kit Components

The following sealing components are documented as kit parts for the applicable Komatsu arm cylinder assembly. Quantities are provided as a parts-catalog reference for one service kit.

Seal color, material appearance and individual component design may vary between production batches. The 707-99-57160 part number and machine application should be used as the primary references when confirming the correct repair kit.

Arm Cylinder Repair

The 707-99-57160 seal kit is used during Komatsu excavator arm cylinder overhaul when seals become worn or hydraulic leakage develops. Before installation, inspect the piston rod, cylinder bore, piston and seal grooves for scoring, corrosion or abnormal wear. Clean the cylinder components thoroughly and install each seal in the correct position and direction before returning the hydraulic cylinder to service.

Topvelsun supplies replacement hydraulic cylinder seal kits for Komatsu excavators. For fitment confirmation, customers can provide the Komatsu part number and excavator model before ordering.

For other PC200-7 hydraulic cylinder repairs, Topvelsun also supplies the 707-99-46130 boom cylinder seal kit and 707-99-45230 bucket cylinder seal kit.