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Heavy-Duty Main Hydraulic Pumps & High-Pressure Piston Pump Assemblies
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705-52-40280 Hydraulic Pump Compatible with Komatsu Wheel Loader WA470-3 WA470
705-52-40280 Hydraulic Pump Compatible with Komatsu Wheel Loader WA470-3 WA470 Part Number: 705-52-40280 Application: Compatible with Komatsu Wheel Loader WA470-3 WA470 Condition: New Aftermarket Parts In Stock Key Features: Direct-fit replacement: No modification required...Regular price $ 2,468 -
705-52-40150 Hydraulic Pump fits for Komatsu Wheel Loaders WA470-3 WA470-DZ-3
705-52-40150 Hydraulic Pump fits for Komatsu Wheel Loaders WA470-3 WA470-DZ-3 Part Number: 705-52-40150 Application: fits for Komatsu Wheel Loaders WA470-3 WA470-DZ-3 Condition: New Aftermarket Parts In Stock Key Features: Direct-fit replacement: No modification required...Regular price $ 2,400 -
705-56-43020 Hydraulic Pump fits for Komatsu Wheel Loaders WA450-3
This new aftermarket hydraulic pump assembly is designed as a direct replacement for Komatsu WA450-3 series wheel loaders. Built to specifications, it delivers stable hydraulic performance and reliable operation in demanding jobsite conditions. 705-56-43020 Hydraulic Pump...Regular price $ 3,168 -
705-55-34190 Hydraulic Pump fits for Komatsu Wheel Loaders WA380-3 WA380-DZ-3
This new aftermarket hydraulic pump assembly is designed as a direct replacement for Komatsu Wheel Loaders WA380-3 WA380-DZ-3 wheel loaders. Built to specifications, it delivers stable hydraulic performance and reliable operation in demanding jobsite conditions. 705-55-34190...Regular price $ 2,680 -
Hydraulic Pump A'ssy 705-55-33070 7055533070 For Komatsu Wheel Loaders WA380-3
This new aftermarket hydraulic pump assembly is designed as a direct replacement for Komatsu Wheel Loaders WA380-3 series wheel loaders. Built to specifications, it delivers stable hydraulic performance and reliable operation in demanding jobsite conditions. Hydraulic...Regular price $ 2,898 -
705-57-21000 Hydraulic Pump For Komatsu WA200 WA250-3MC WA250PT-3MC WHEEL LOADER
705-57-21000 Hydraulic Pump For Komatsu WA200 WA250-3MC WA250PT-3MC WHEEL LOADER Part Number: 705-57-21000 Application: For Komatsu WA200 WA250-3MC WA250PT-3MC WHEEL LOADER Condition: New Aftermarket Parts In Stock Key Features: Direct-fit replacement: No modification required...Regular price $ 1,800
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.