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Komatsu PC400-7 PC450-7 Hydraulic Main Pump | 708-2H-00027, 708-2H-31150 | Assembly & Repair Kits

Model Number

708-2H-00027, 708-2H-31150

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Product Description

Komatsu PC400-7 & PC450-7 Excavator Main Hydraulic Pump Assembly & Repair Kits

Product Overview: This product range is specifically engineered for Komatsu PC400-7 and PC450-7 40-ton heavy-duty excavators. As the “power heart” of the excavator’s hydraulic circuit, the main pump dictates digging force, travel speed, and operational harmony. We offer complete 708-2H-00027 and 708-2H-31150 pump assemblies, alongside High-Quality Repair Kits (including pistons, valve plates, and set plates) to restore your machine to peak factory performance.

Key Technical Advantages:

  • Mining-Grade Durability: Optimized for the high-intensity breaking and excavation tasks typical of the PC400 series. Internal bearings and swashplates are reinforced to ensure exceptional fatigue resistance under high-pressure conditions of 35 MPa.

  • Precision Load-Sensing Control: Perfectly calibrated to Komatsu’s original control logic. Models like the 708-2H-31150 feature millisecond-fast displacement response, automatically modulating output based on load to reduce fuel consumption and boost efficiency.

  • 100% OEM Specification Match: Manufactured strictly to Komatsu standards. Every mounting flange, shaft spline, and servo valve interface is a seamless match for 708-2H-00027, ensuring a “drop-in” installation.

  • Comprehensive Maintenance Support: Beyond full assemblies, we provide precision internal component kits for the PC450-7. All repair parts are precision-ground for maximum sealing and volumetric efficiency, making them the ideal choice for cost-effective overhauls.

Specific Models & Technical Parameters:

  • Machine Compatibility: Komatsu PC400-7, PC400LC-7, PC450-7, PC450LC-7.

  • Core Part Numbers (P/N): 708-2H-00027, 708-2H-31150.

  • Component Type: Double Axial Piston Variable Displacement Pump.

  • Key Specifications: Rated pressure 35 MPa (350 Bar); Max flow optimized for 40-ton class requirements.

  • Included Items: Pump Assembly, Piston Groups, Valve Plates, Seal/Repair Kits.


Company Profile

We adhere to international quality management standards and provide a 1-year warranty including maintenance and replacement. We have established long-term strategic cooperation with many well-known brands and continuously launch new products to meet market development. Flexible payment terms are supported, including USD settlement, Alipay, Western Union and T/T.
 
Relying on our standardized production base and professional foreign trade team, we provide competitive factory direct prices, efficient logistics channels and punctual delivery. FJZY Hydraulic is devoted to being your trustworthy long-term partner in hydraulic and agricultural machinery fields.
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Our Advantages

Fast & Reliable Delivery

We optimize global logistics channels to ensure every customer receives their goods on time, anywhere in the world.

Extensive Partnerships

We collaborate with numerous factories, offering a wide range of product selections and providing you with instant quote responses

Strict Quality Assurance

Quality first is our principle. We provide a one-year warranty service, ensuring you receive top-tier quality products with confidence.

Competitive Pricing

Through efficient production and close cooperation, we offer highly competitive prices, guaranteeing a cost-effective experience for you.
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