707-98-46280 Boom Cylinder Seal Kit 85mm Rod 120mm Bore for Komatsu PC200-8 PC210LC-8

707-98-46280 Boom Cylinder Seal Kit for Komatsu Excavators

707-98-46280 is a boom hydraulic cylinder seal kit for Komatsu excavators including PC200-8, PC200LC-8, PC210-8, PC210LC-8 and other compatible models. Designed for boom 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 an 85 mm piston rod and 120 mm cylinder bore. Before ordering, please confirm the 707-98-46280 part number and excavator model to ensure correct fitment.

Compatible Komatsu Excavator Models

For following models:

Komatsu Excavator PC200-8, PC200LC-8, PC210-8, PC210LC-8, PC210LC-8K

707-98-46280 Seal Kit Components

The following components are commonly included in the 707-98-46280 boom cylinder repair kit for the applicable Komatsu hydraulic cylinder assembly.

Seal color, material appearance and individual component design may vary between production batches. The 707-98-46280 part number and machine application should be used as the primary references when confirming the correct repair kit.

Boom Cylinder Repair

The 707-98-46280 seal kit is used during Komatsu excavator boom 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 hydraulic cylinder components thoroughly and install each seal in the correct position and direction before returning the 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 PC200-8 hydraulic cylinder repairs, Topvelsun also supplies the 707-98-48610 arm cylinder seal kit and 707-98-39610 bucket cylinder seal kit.