Arm Cylinder Seal Kit 707-99-68510 for Komatsu PC400 PC450 Excavator Shopify Handle
Arm Cylinder Seal Kit 707-99-68510 for Komatsu PC400 PC450 Excavator Shopify Handle
Available in stock
Product Description
Part Name: Arm Cylinder Seal Kit
Part Number(s): 707-99-68510
Brand Compatibility: Komatsu
Machine Type: Hydraulic Excavator
Component: Arm (Stick) Hydraulic Cylinder
Condition: Brand New
Shipping: Fast worldwide shipping with secure packaging and reliable international delivery within 2–7 business days.
The 707-99-68510 Arm Cylinder Seal Kit is manufactured to OEM specifications for the arm (stick) hydraulic cylinder fitted to selected Komatsu PC400-5, PC400LC-5, PC450-6 and PC450LC-6 excavators. This complete hydraulic cylinder overhaul kit contains 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 operating pressure. Manufactured from high-quality sealing materials, it provides long-lasting performance in demanding construction, quarrying, mining and heavy earthmoving applications.
The arm hydraulic cylinder controls the extension and retraction of the excavator stick, providing the reach and digging force required for trenching, excavation, grading and loading operations. Continuous exposure to high hydraulic pressures, heavy digging forces and abrasive working conditions gradually wears the sealing components. Worn seals can cause hydraulic oil leakage, stick drift, reduced digging performance, slow arm movement and internal pressure bypass. Replacing the complete seal kit restores hydraulic efficiency, protects internal cylinder components and helps maximise machine productivity while reducing maintenance downtime.
Typical Applications
Construction • Earthmoving • Mining • Quarrying • Civil Infrastructure • Road Construction • Heavy Excavation • Demolition • Material Handling
Common Symptoms
- Hydraulic oil leakage from the arm cylinder
- Stick drifting during operation
- Reduced digging force
- Slow arm extension or retraction
- Internal hydraulic pressure bypass
- Difficulty maintaining arm position
- Reduced hydraulic system efficiency
Cross-Reference Part Numbers
OEM Part Number: 707-99-68510
Compatible Models
Hydraulic Excavators: Komatsu PC400-5, PC400LC-5, PC450-6 and PC450LC-6.
Fitment Note
Please verify the OEM part number, machine model, serial number and arm hydraulic cylinder assembly before ordering. Komatsu may use different arm cylinder configurations depending on the machine model, production series and serial number. Contact Imara Engineering Supplies if you require assistance confirming compatibility.
Technical Specifications
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How can I get in touch with IMARA Engineering Supplies for further inquiries?
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Is there a warranty on products purchased from IMARA Engineering Supplies?
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Does IMARA Engineering Supplies offer international shipping?
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