Hot Selling PC400‑7/8 Bucket Boom Arm Cylinder Seal Kits for KOMATSU 707‑99‑72240

Keywords: 707‑99‑72240, Bucket Cylinder Seal Kit, Komatsu PC400‑7 PC400‑8 Seal Kit, Excavator Bucket Hydraulic Repair Kit, Hydraulic Cylinder Overhaul Seal Set, Excavator Bucket Ram Seals, Construction Machinery Spare Parts, Aftermarket Replacement Seal Kit

🔹Product Overview

Bucket Cylinder Seal Kit Part No.707‑99‑72240 is a complete hydraulic overhaul sealing kit specially designed for Komatsu PC400‑7, PC400‑8 excavator bucket cylinder. This repair kit is assembled with piston seals, rod seals, buffer seals, wear rings, O‑rings and backup rings for bucket cylinder assembly. It provides stable sealing performance for high‑pressure hydraulic circuit, effectively prevents external oil seepage, internal oil bypass and cylinder pressure loss. Our aftermarket seal kit is made of premium oil‑resistant rubber and PTFE composite materials, strictly manufactured and inspected in accordance with OEM dimensional specifications. It delivers excellent high‑pressure resistance, wear resistance and anti‑aging property, perfectly adapts to heavy‑duty digging, mining and earth‑moving working scenarios. It is a reliable aftermarket spare part for excavator bucket cylinder maintenance and full hydraulic overhaul.

🔹Detailed Specifications

🔹Key Features & Advantages

• Complete Full‑Set Repair Accessories Contains all necessary sealing components for one bucket cylinder overhaul, no need to purchase scattered separate seals, greatly improve field repair efficiency.
• Strict OEM Dimension Compliance Every seal, wear ring and backup ring precisely matches original cylinder groove size, direct installation without cutting, grinding or secondary modification.
• Heavy‑Duty Composite Sealing Materials Adopt high‑grade nitrile rubber and PTFE composite material, outstanding resistance against high‑pressure hydraulic oil, abrasion and temperature variation.
• Superior High‑Pressure & Anti‑Aging Performance Keep stable performance under long‑time heavy‑load operation, effectively avoid seal cracking, hardening and deformation, extend bucket cylinder service life.
• Cost‑Effective Hydraulic Repair Solution Repair leaking bucket cylinder instead of replacing expensive whole cylinder assembly, solve bucket slow action, insufficient digging power and oil spill faults, reduce maintenance expense and equipment downtime.

🔹Application Scope

Compatible Equipment List: ‑ Komatsu Excavator PC400‑7, PC400‑8 equipped with 707‑99‑72240 bucket cylinder ‑ Widely applied in mining site, quarry and earth‑moving projects for bucket cylinder leakage troubleshooting and overhaul

🔹Our Company Advantage

We are professional supplier of full‑range Komatsu excavator replacement spare parts. Our product portfolio includes hydraulic seal kits, cylinder components, engine overhaul kits, sensors, solenoid valves and other construction machinery spare parts. ‑ Large ready stock for various Komatsu hydraulic cylinder seal repair kits ‑ Factory direct wholesale competitive price ‑ Mixed‑order & one‑stop spare‑parts procurement supported ‑ Professional part‑number matching technical support service

🔹Packaging & Shipping ‑

Inner waterproof sealed plastic bag to protect rubber seals from dust, moisture and ultraviolet damage ‑ Outer reinforced export carton for long‑distance sea and land transportation ‑ Multiple shipping selections: sea freight, air freight, international express for small trial orders ‑ Export documents including Commercial Invoice, Packing List can be provided

🔹Contact Us

If you need more Komatsu excavator seal kits, hydraulic spare parts or other construction machinery replacement components, please send your parts list to us. We will offer our best quotation for you quickly.