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Heavy-Duty Main Hydraulic Pumps & High-Pressure Piston Pump Assemblies
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705-95-07031 Hydraulic Pump fits for Komatsu Dump Truck HM400-2 HM400-2R
Steering and Hoist Pump 705-95-07030 705-95-07031 for Komatsu Dump Track HM400-2 HM400-2R :705-95-07030,705-95-07031,7059507030,7059507031,SDR100+100+SB8 Application: Model:Komatsu Dump Track HM400-2 HM400-2R See Details: D155A-2 S/N 50001-UP (S6D155-4 Eng. Installed) BULLDOZERS D155A-2 S/N 50001-UP BULLDOZERS D85A-21 S/N 35001-36533 BULLDOZERS...Regular price $ 2,980 -
705-56-34490 7055634490 Hydraulic Pump fits for Komatsu Dump Trucks HM400-1 HM400-1L
This new aftermarket hydraulic pump assembly is designed as a direct replacement for Komatsu Dump Trucks HM400-1 HM400-1L. Built to specifications, it delivers stable hydraulic performance and reliable operation in demanding jobsite conditions. 705-56-34490 7055634490 Hydraulic...Regular price $ 1,768 -
Hydraulic Pump Gear Pump 705-22-40110 7052240110 for Komatsu WA500-1 HM400-1
Hydraulic Pump Gear Pump 705-22-40110 7052240110 for Komatsu WA500-1 HM400-1 Part Number: 705-22-40110 7052240110 Application: for Komatsu WA500-1 HM400-1 Condition: New Aftermarket Parts In Stock Key Features: Direct-fit replacement: No modification required for installation....Regular price $ 580 -
NEW 705-56-34590 7055634590 Hydraulic Pump ASS'Y For Komatsu HM350-1 HM350-1L
This new aftermarket hydraulic pump assembly is designed as a direct replacement for Komatsu HM350-1 HM350-1L series wheel loaders. Built to specifications, it delivers stable hydraulic performance and reliable operation in demanding jobsite conditions. NEW 705-56-34590...Regular price $ 2,200 -
New 705-56-34550 7055634550 Hydraulic Pump For Komatsu HM300TN-1 HM300-1 HM300-1L
This new aftermarket hydraulic pump assembly is designed as a direct replacement for Komatsu HM300TN-1 HM300-1 HM300-1L series wheel loaders. Built to specifications, it delivers stable hydraulic performance and reliable operation in demanding jobsite conditions. New...Regular price $ 1,786 -
Hydraulic Pump Assembly 705-95-07020 for Komatsu Dump Trucks HM250-2 HM300-2
Hydraulic Pump Assembly 705-95-07020 for Komatsu Dump Trucks HM250-2 HM300-2 Part Number: 705-95-07020 Application: for Komatsu Dump Trucks HM250-2 HM300-2 Condition: New Aftermarket Parts In Stock Key Features: Direct-fit replacement: No modification required for...Regular price $ 3,198
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.