Komatsu Excavator Arm Cylinder With Verified Reference Part Numbers 707-F1-00740
This replacement arm cylinder is manufactured as a build-to-print compatible component for Komatsu crawler excavators. Production is based on verified Komatsu reference part numbers and approved technical dimensions. The arm cylinder controls the critical digging force and articulation, making precision and durability essential.
Key Selling Points
- Verified compatibility: Manufactured to Komatsu reference part numbers 707-F1-00740 and 707-01-0K773 for accurate fit.
- Precision-honed tube: Ensures smooth movement and stable sealing performance under repeated high-pressure cycles.
- Hard chrome rod: Provides wear and corrosion resistance for long service life in demanding environments.
- 100% inspection: Each unit undergoes dimensional, pressure, leakage and full-stroke functional testing before shipment.
- Build-to-print: Manufacturing follows customer-approved drawings or reverse engineering from original samples.
Technical Specifications
| Product Type | Build-to-print compatible replacement hydraulic cylinder |
| Product Identification | Komatsu reference part number |
| Machine Identification | Complete equipment model required |
| Serial Identification | Machine serial number required |
| Cylinder Position | Arm |
| Acting Type | Single or double acting according to original application |
| Bore Diameter | Manufactured according to approved reference drawing or verified sample |
| Rod Diameter | Manufactured according to approved reference drawing or verified sample |
| Stroke Length | Manufactured according to approved reference drawing or verified sample |
| Mounting Style | Eye / clevis / trunnion / flange or application-specific |
| Working Pressure | Matched to confirmed machine hydraulic system |
| Operating Temperature | Confirmed according to application requirements |
| Surface Finish | Industrial painted finish |
| Standard Color | Komatsu-compatible yellow or customer-specified |
Models and Options
Available for Komatsu crawler excavators in the PC800–PC2000 range. The exact part number and machine serial number must be confirmed before production.
Materials and Structure
- Precision-honed steel cylinder tube
- Hard chrome-plated high-strength alloy steel piston rod
- Forged or machined steel rod eye and base-end mounting
- High-strength steel piston and machined steel gland
- Application-specific polyurethane and elastomeric seals
- Wear-resistant guide rings and heavy-duty rod wiper
Applications
Ideal for crawler excavators in construction, earthmoving, mining, quarrying and road construction. The arm cylinder is critical for digging force and articulation, performing under high load, impact and abrasive conditions.
Customization
Custom cushioning configurations, holding valve interfaces, paint colors, logos, identification plates and export packaging are available. Build-to-print manufacturing from customer-approved drawings and reverse engineering from sample cylinders are supported.
FAQ
What information is needed to produce a compatible arm cylinder?
You must provide the Komatsu reference part number, complete equipment model, machine serial number and confirm the cylinder position. An approved production drawing is required before manufacturing.
Are these genuine Komatsu parts?
No. Apex Hydraulic manufactures independently produced aftermarket-compatible replacement cylinders. Komatsu is a trademark of Komatsu Ltd. and reference numbers are used solely for compatibility identification.
What guarantee is there that the cylinder will fit my machine?
The bore, rod, stroke, port and mounting dimensions are confirmed against verified part numbers and approved drawings before production begins.
Can you reverse engineer a cylinder from a sample?
Yes, reverse engineering is available when an original cylinder sample is supplied.
What testing is performed on each cylinder?
Each cylinder undergoes incoming material inspection, dimensional inspection, weld inspection, rod surface inspection, hydraulic pressure testing, leakage testing and full-stroke functional testing. Final inspection includes 100% checks before shipment.
Do you offer custom paint colors?
Yes, standard color is Komatsu-compatible yellow but customer-specified colors are available.
Can the cylinder be supplied with a holding valve?
Yes, holding valve interfaces are available where required by the original application and confirmed design.
What is the MOQ for this product?
Standard products have a MOQ of 1 piece. Custom OEM/ODM projects are negotiable based on specifications.
Inquiry Information
For a quotation, please provide the Komatsu part number, machine model, and serial number. Contact Jason at jason@hydraulicapex.com or +86 182-5318-1828.
Procurement process: Inquiry → Technical Review → Drawing Confirmation → Quotation → Sample Approval (if required) → PI Confirmation → Deposit Payment → Manufacturing → Quality Inspection & Testing → Final Payment → Shipment → After-sales Support.
Image Suggestions
Main image: komatsu-excavator-arm-cylinder-compatible-replacement.jpg.jpg - Alt: Komatsu excavator arm cylinder, reference 707-F1-00740, fitted to crawler excavator
Secondary image: apex-replacement-hydraulic-cylinder-for-komatsu-equipment.jpg.jpg - Alt: Apex aftermarket replacement hydraulic cylinder for Komatsu equipment
