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CAT D8R Bulldozer Hydraulic Pump 139-4151 | Original New Main Pump Assembly
| Model Number | 139-4151 |
|---|
Product Description
CAT D8R Bulldozer Original New Hydraulic Main Pump Assembly (139-4151)
Product Overview: This product is a high-performance hydraulic main pump assembly specifically engineered for the Caterpillar D8R Bulldozer, designated by part number 139-4151. As the “beating heart” of the machine’s hydraulic system, this pump drives the blade lift, tilt, and steering functions. We offer Original New units that meet Caterpillar’s stringent OEM manufacturing standards, ensuring sustained and stable hydraulic output in extreme mining, earthmoving, and high-temperature environments.
Key Technical Advantages:
Precision Compatibility: Manufactured strictly to CAT D8R specifications, ensuring 100% physical fit and flow synchronization for direct, “plug-and-play” installation without modification.
Heavy-Duty Durability: Features a reinforced axial piston architecture designed to withstand the high-frequency shock loads encountered during heavy-duty D8R dozing operations, significantly extending the Mean Time Between Failures (MTBF).
High Efficiency Performance: Optimized port plate designs minimize internal leakage, maintaining superior volumetric efficiency even at maximum operating pressures, which improves overall machine fuel efficiency and cycle times.
Original Quality Assurance: Being an “Original New” component means every bearing, seal, and piston group is in peak condition, eliminating the risks of pressure fluctuations and premature failure common with remanufactured units.
Specific Models & Technical Parameters:
Machine Compatibility: Caterpillar (CAT) D8R Series Bulldozer.
Part Number (P/N): 139-4151.
Component Type: Axial Piston Variable Displacement Main Pump.
Key Specifications: Standard operating pressure up to 42 MPa (420 Bar); flow rate matched to D8R hydraulic logic; utilizes standard CAT splined shafts and mounting interfaces.
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.
Our Advantages
Fast & Reliable Delivery
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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