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Heavy-Duty Main Hydraulic Pumps & High-Pressure Piston Pump Assemblies
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Hydraulic Pump 705-51-42080 For Komatsu Bulldozer D575A-2 D575A-3
Hydraulic Pump 705-51-42080 For Komatsu Bulldozer D575A-2 D575A-3 Part Number: 705-51-42080 Application: For Komatsu Bulldozer D575A-2 D575A-3 Condition: New Aftermarket Parts In Stock Key Features: Direct-fit replacement: No modification required for installation. Stable operation:...Regular price $ 3,200 -
Hydraulic Pump 705-52-30240 for Komatsu Bulldozer D475A-2 D475A-1
Hydraulic Pump 705-52-30240 for Komatsu Bulldozer D475A-2 D475A-1 Part Number: 705-52-30240 Application: for Komatsu Bulldozer D475A-2 D475A-1 Condition: New Aftermarket Parts In Stock Key Features: Direct-fit replacement: No modification required for installation. Stable operation:...Regular price $ 3,029 -
Hydraulic Pump 705-52-40290 705-52-40250 for Komatsu Bulldozer D475A-3 D475A-3-HD D475A-3-SC
Hydraulic Pump 705-52-40290 705-52-40250 for Komatsu Bulldozer D475A-3 D475A-3-HD D475A-3-SC Part Number: 705-52-40290 705-52-40250 Application: for Komatsu Bulldozer D475A-3 D475A-3-HD D475A-3-SC Condition: New Aftermarket Parts In Stock Key Features: Direct-fit replacement: No modification required...Regular price $ 2,498 -
Hydraulic Pump 704-71-44071 7047144071 Pump Ass'y for Komatsu Bulldozer D475A-5
Hydraulic Pump 704-71-44071 7047144071 Pump Ass'y for Komatsu Bulldozer D475A-5 Part Number: 704-71-44071 7047144071 Application: for Komatsu Bulldozer D475A-5 Condition: New Aftermarket Parts In Stock Key Features: Direct-fit replacement: No modification required for installation....Regular price $ 3,468 -
Hydraulic Pump 705-58-44050 compatible with Komatsu Bulldozers D375A-3 D375A-3A D375A-3A-01 D375A-3-01 D375A-5 D375A-3D D375A-5D
This new aftermarket hydraulic pump assembly is designed as a direct replacement for Komatsu Bulldozers D375A-3 D375A-3A D375A-3A-01 D375A-3-01 D375A-5 D375A-3D D375A-5D. Built to specifications, it delivers stable hydraulic performance and reliable operation in demanding jobsite...Regular price $ 2,800 -
Hydraulic Pump 195-49-34100 1954934100 Compatible with Komatsu Bulldozer D275A D375A
Part Numbers: 195-49-34100 1954934100 Compatible with Komatsu Bulldozer D275A D375A Package Includes: 1 x Hydraulic Pump Easy To Install. Manufactured to Precise OE Requirements For Perfect Fit. Reliable Performance. Replacement Parts. As Good As at a...Regular price $ 1,868
If your excavator is struggling to lift loads or performing sluggishly on the job site, a worn replacement main hydraulic pump is likely the issue. As the primary power source for your machine's movements, a high-efficiency piston pump converts engine power into the high-pressure flow required for heavy digging and lifting. BeeSpareParts offers a wide range of K3V, K5V, and HPV series pumps specifically engineered for the high-intensity demands of construction and mining.
A failing main pump can often be a symptom of deeper system issues. To protect your investment, we highly recommend browsing our to eliminate contaminants that cause premature wear, or checking our for any internal leaks. If only small auxiliary functions are failing, consider inspecting your first. Our main pump assemblies are a cost-effective alternative to OEM units, featuring precision-ground internal components and rugged housings to restore your machine’s factory-spec performance.
Whether you need a Kawasaki-style pump for a Komatsu, a main pump for a Doosan, or a heavy-duty unit for a Hitachi excavator, our parts are rigorously factory-tested for pressure stability and ready for fast international shipping. Eliminate downtime and regain your digging power—upgrade to a premium hydraulic pump solution today.
Fits for:
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Engine & Model Series: 6BT, 6CT, 6D102, 6D107, S6K, J05E, J08E, 4HK1, 6HK1.
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Equipment Models: ZX, PC, SK, EC, EX series excavators, crawler cranes, and heavy-duty loaders.