Bucket Hydraulic Cylinder Seal Kit 707-99-72240 for Komatsu PC400 PC450 Excavator
Bucket Hydraulic Cylinder Seal Kit 707-99-72240 for Komatsu PC400 PC450 Excavator
Available in stock
Product Description
Part Name: Bucket Hydraulic Cylinder Seal Kit
Part Number(s): 707-99-72240
Brand Compatibility: Komatsu
Machine Type: Excavator
Component: Bucket Hydraulic Cylinder
Condition: Brand New
Shipping: Fast worldwide shipping with secure packaging and reliable international delivery within 2–7 business days.
The 707-99-72240 Bucket Hydraulic Cylinder Seal Kit is manufactured to OEM specifications for the bucket hydraulic cylinder fitted to selected Komatsu PC400, PC400LC, PC450, PC450LC-7 and PC450LC-8 excavators. This complete hydraulic cylinder overhaul kit includes precision-engineered rod seals, piston seals, wear rings, guide rings, backup rings, O-rings and dust seals designed to restore hydraulic sealing performance, eliminate hydraulic oil leakage and maintain optimum cylinder pressure. Manufactured from premium sealing materials, it provides dependable sealing performance in demanding construction, mining, quarrying and heavy earthmoving applications.
The bucket hydraulic cylinder controls the bucket's curling and dumping functions, providing the breakout force and precise bucket positioning required for excavation, trenching, loading and material handling. Continuous exposure to heavy digging loads, high hydraulic pressures and abrasive operating environments gradually wears the cylinder sealing components. Worn seals can cause hydraulic oil leakage, reduced bucket breakout force, bucket drift, slow bucket response and internal hydraulic pressure bypass. Replacing the complete seal kit restores hydraulic efficiency, protects internal cylinder components and helps maximise excavator productivity while reducing maintenance downtime.
Typical Applications
Construction • Earthmoving • Mining • Quarrying • Heavy Excavation • Road Construction • Demolition • Material Handling • Civil Infrastructure
Common Symptoms
- Hydraulic oil leakage from the bucket cylinder
- Reduced bucket breakout force
- Bucket drifting during operation
- Slow bucket curl or dump movement
- Internal hydraulic pressure bypass
- Difficulty maintaining bucket position
- Reduced hydraulic system efficiency
Cross-Reference Part Numbers
OEM Part Number: 707-99-72240
Compatible Models
Excavators: Komatsu PC400, PC400LC, PC450, PC450LC-7, PC450LC-8.
Fitment Note
Please verify the OEM part number, machine model, serial number and bucket hydraulic cylinder assembly before ordering. Komatsu may use different bucket cylinder configurations depending on the machine model, production year and serial number. Contact Imara Engineering Supplies if you require assistance confirming compatibility.
Technical Specifications
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Does IMARA Engineering Supplies offer international shipping?
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