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CAT D8D D8RGC Bulldozer Hydraulic Pump | 421-1808, 205-1823, 262-0996 | Main Pump Assembly
| Model Number | 421-1808, 205-1823, 262-0996, 139-4151 |
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Product Description
CAT D8D & D8RGC Bulldozer Main Hydraulic Pump Assembly
Product Overview: This high-performance axial piston hydraulic main pump is specifically engineered for Caterpillar (CAT) D8D and D8RGC series bulldozers. Serving as the heart of the bulldozer’s hydraulic circuit, this pump drives critical work implements (blade lift and tilt) and steering systems. We provide core OEM replacements, including part numbers 421-1808, 205-1823, 262-0996, and 139-4151, ensuring your equipment maintains robust load-sensing capabilities in extreme mining and earthmoving conditions.
Key Technical Advantages:
Superior Heavy-Duty Durability: Optimized for high-intensity dozing and ripping operations. Featuring reinforced piston groups and port plate designs, it maintains exceptional volumetric efficiency even under sustained high-temperature and high-pressure environments.
Precise Load-Sensing Control: Models like the 421-1808 offer superior pressure/flow regulation, automatically matching power output to blade load. This significantly reduces fuel consumption and prevents system overheating.
100% OEM Compatibility: Manufactured strictly to CAT OEM standards. Every mounting bracket, shaft spline, and side-port configuration is a seamless match for 205-1823 and 139-4151, ensuring a “drop-in” installation.
Vibration & Shock Resistance: Engineered for the severe vibration environments typical of D8 series dozers. Reinforced bearing supports effectively absorb shocks from the work tools, extending the pump’s Mean Time Between Overhauls (MTBO).
Specific Models & Technical Parameters:
Machine Compatibility: Caterpillar D8D, D8R, D8R LGP, D8RGC Bulldozers.
Core OEM Part Numbers: 421-1808, 205-1823, 262-0996, 139-4151.
Pump Type: Variable Axial Piston Pump.
Key Specifications: Rated pressure up to 35 MPa; Compatible with standard CAT hydraulic fluid; Equipped with standard SAE mounting flanges.
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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