arm-cylinder-seal-kit-707-99-67280-komatsu-pc300-pc350-excavator
arm-cylinder-seal-kit-707-99-67280-komatsu-pc300-pc350-excavator
Available in stock
Product Description
Part Name: Arm Cylinder Seal Kit
Part Number(s): 707-99-67280
Brand Compatibility: Komatsu
Machine Type: Hydraulic Excavator
Component: Arm (Stick) Hydraulic Cylinder
Cylinder Assembly: 207-63-02541
Condition: Brand New
Shipping: Fast worldwide shipping with secure packaging, reliable international logistics and estimated delivery within 2–7 business days.
The 707-99-67280 Arm Cylinder Seal Kit is manufactured to OEM specifications for the arm (stick) hydraulic cylinder fitted to selected Komatsu PC300-6, PC300LC-6, PC350-6, PC350LC-6 and PC380LC-6 excavators. Designed for cylinder assembly 207-63-02541, this complete overhaul kit contains precision seals, wear rings, backup rings and O-rings required to restore hydraulic sealing, maintain operating pressure and eliminate internal and external hydraulic oil leakage. The kit is engineered for hydraulic cylinders with a 110 mm piston rod and 160 mm bore, ensuring reliable performance in demanding excavation environments.
The arm cylinder controls the movement of the excavator stick, allowing accurate trenching, loading, grading and material handling. As the cylinder operates under continuous high pressure and heavy working loads, its sealing components gradually wear due to contamination, shock loading and repeated operating cycles. Worn seals can cause oil leakage, stick drift, loss of digging force and slow hydraulic response. Replacing the complete seal kit restores hydraulic efficiency, protects internal cylinder components and helps maximise machine productivity while reducing unplanned downtime.
Typical Applications
Construction • Earthmoving • Mining • Quarrying • Civil Infrastructure • Trenching • Demolition • Heavy Excavation • Material Handling
Common Symptoms
- Hydraulic oil leakage from the arm cylinder
- Stick drifting under load
- Reduced digging force
- Slow arm extension or retraction
- Internal hydraulic pressure bypass
- Difficulty maintaining stick position
- Reduced excavation efficiency
Cross-Reference Part Numbers
OEM Part Number: 707-99-67280
Compatible Models
Hydraulic Excavators: Komatsu PC300-6, PC300LC-6, PC350-6, PC350LC-6 and PC380LC-6.
Fitment Note
Please verify the OEM part number, machine model, serial number and arm cylinder assembly (207-63-02541) before ordering. Komatsu may use different hydraulic cylinder configurations depending on machine serial number and production specification. Contact Imara Engineering Supplies if you require assistance confirming compatibility.
Technical Specifications
Couldn't load pickup availability
Ask an Expert: admin@imaraengineering.net
How can I get in touch with IMARA Engineering Supplies for further inquiries?
How can I get in touch with IMARA Engineering Supplies for further inquiries?
You can contact IMARA Engineering Supplies through the contact details provided on the official website. The company's customer support team is available to assist with any inquiries, product information, or order-related questions.
These FAQs are designed to provide essential information about IMARA Engineering Supplies and address common queries that visitors to the website may have.
Is there a warranty on products purchased from IMARA Engineering Supplies?
Is there a warranty on products purchased from IMARA Engineering Supplies?
Yes, IMARA Engineering Supplies provides warranties on its products. Specific warranty information can be obtained by contacting the company directly or reviewing the terms and conditions on the official website.
Does IMARA Engineering Supplies offer international shipping?
Does IMARA Engineering Supplies offer international shipping?
Yes, IMARA Engineering Supplies offers international shipping. The company can arrange for the delivery of parts and components to various locations globally, ensuring that clients have access to their products regardless of geographical boundaries.
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Our Processes
Order Placement:
Once you choose the products you need, simply place your order through our user-friendly platform, ensuring a seamless start to the process.
Order Confirmation:
Our team will confirm the details of your order and provide any necessary assistance, ensuring your specifications are met perfectly.
Processing & Packing:
After confirmation, we process your order, carefully selecting and packing the parts to ensure safe and accurate delivery.
Delivery:
Finally, your products are shipped and delivered directly to your location, with tracking provided for peace of mind, ensuring your equipment is ready when you need it.