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Heavy-Duty Main Hydraulic Pumps & High-Pressure Piston Pump Assemblies
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Hydraulic Pump 705-52-31080 for Komatsu Wheel Loader WA600-3 WA600-3D
Hydraulic Pump 705-52-31080 for Komatsu Wheel Loader WA600-3 WA600-3D Part number: 705-52-31080 Package Included: Hydraulic Gear Pump*1 Application: for Komatsu Wheel Loader WA600-3 WA600-3D Condition: New Aftermarket In Stock Key Features: Direct-fit replacement: No modification required...Regular price $ 1,269 -
Hydraulic Pump 705-52-31150 7055231150 for Komatsu Dump Truck HM400-1 HM400-1L
Hydraulic Pump 705-52-31150 7055231150 for Komatsu Dump Truck HM400-1 HM400-1L Part Number: 705-52-31150 7055231150 Application: for Komatsu Dump Truck HM400-1 HM400-1L Condition: New Aftermarket Parts In Stock Key Features: Direct-fit replacement: No modification required for...Regular price $ 880 -
Hydraulic Pump 705-55-34180 705-55-34140 For Komatsu WA380-3 WA350-3A WA350-3-X
Hydraulic Pump 705-55-34180 705-55-34140 For Komatsu WA380-3 WA350-3A WA350-3-X Part number:705-55-34180 705-55-34140 Package Included: New Hydraulic Pump*1 Application:For Komatsu WA380-3 WA350-3A WA350-3-X Condition: New Aftermarket In Stock Key Features: Direct-fit replacement: No modification required for installation....Regular price $ 1,794 -
Hydraulic Pump 705-56-26081 7055626081 for Komatsu Wheel Loader WA200-5 WA200PT-5
This new aftermarket hydraulic pump assembly is designed as a direct replacement for Komatsu Wheel Loader WA200-5 WA200PT-5 series wheel loaders. Built to specifications, it delivers stable hydraulic performance and reliable operation in demanding jobsite conditions....Regular price $ 2,108 -
HYDRAULIC PUMP 704-12-38100 FOR KOMATSU BULLDOZER D50A-17 D50P-17 D50PL-17 D53S-16
HYDRAULIC PUMP 704-12-38100 FOR KOMATSU BULLDOZER D50A-17 D50P-17 D50PL-17 D53S-16Part number: 704-12-38100Package Included:HYDRAULIC PUMP *1Application: FOR KOMATSU BULLDOZER D50A-17 D50P-17 D50PL-17 D53S-16 Condition:New Aftermarket In Stock Key Features: Direct-fit replacement: No modification required for installation. Stable...Regular price $ 498 -
Hydraulic Pump 705-22-28310 For Komatsu HD465-7E0 HD465-7R HD605-7E0 HD605-7R
Hydraulic Pump 705-22-28310 For Komatsu HD465-7E0 HD465-7R HD605-7E0 HD605-7R Part number: 705-22-28310 Package Included: New Hydraulic Pump*1 Application:For Komatsu HD465-7E0 HD465-7R HD605-7E0 HD605-7R Condition: New Aftermarket In Stock Key Features: Direct-fit replacement: No modification required for...Regular price $ 928
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.