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Heavy-Duty Main Hydraulic Pumps & High-Pressure Piston Pump Assemblies
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Hydraulic Pump 705-56-34290 7055634290 for Komatsu Crane LW250-5X LW250-5H
This new aftermarket hydraulic pump assembly is designed as a direct replacement for Komatsu Crane LW250-5X LW250-5H. Built to specifications, it delivers stable hydraulic performance and reliable operation in demanding jobsite conditions. Hydraulic Pump 705-56-34290 7055634290 for...Regular price $ 2,168 -
Hydraulic Pump 172-5636 for Caterpillar CAT D11R D11T Track-Type Tractor 3508B C32 Engine
Hydraulic Pump 172-5636 for Caterpillar CAT D11R D11T Track-Type Tractor 3508B C32 Engine Part Number: 172-5636 Application: for Caterpillar CAT D11R D11T Track-Type Tractor 3508B C32 Engine Condition: New Aftermarket Parts In Stock Key Features:...Regular price $ 2,688 -
Hydraulic Pump 705-51-30240 7055130240 for Komatsu Bulldozer D135A-2 D135A-1 D85P-21A
Hydraulic Pump 705-51-30240 7055130240 for Komatsu Bulldozer D135A-2 D135A-1 D85P-21A Part Number: 705-51-30240 7055130240 Application: for Komatsu Bulldozer D135A-2 D135A-1 D85P-21A Condition: New Aftermarket Parts In Stock Key Features: Direct-fit replacement: No modification required for...Regular price $ 1,168 -
Hydraulic Pump 705-56-24080 7055624080 for Komatsu Excavator PC60-3 PC60U-3
This new aftermarket hydraulic pump assembly is designed as a direct replacement for Komatsu Excavator PC60-3 PC60U-3. Built to specifications, it delivers stable hydraulic performance and reliable operation in demanding jobsite conditions. Hydraulic Pump 705-56-24080 7055624080...Regular price $ 1,268 -
Hydraulic Pump 705-52-30360 for Komatsu HD255-5 WA400-3 WA420-3 SAA6D125E-3
Hydraulic Pump 705-52-30360 for Komatsu HD255-5 WA400-3 WA420-3 SAA6D125E-3 Part Number: 705-52-30360 Application: for Komatsu HD255-5 WA400-3 WA420-3 SAA6D125E-3 Condition: New Aftermarket Parts In Stock Key Features: Direct-fit replacement: No modification required for installation. Stable...Regular price $ 980 -
For Komatsu Bulldozer D150A-1 D155A-1 D455A-1 D155A-2 D155A-2A Hydraulic Pump 07446-66100 07446-66200 07446-66102 07446-66104
For Komatsu Bulldozer D150A-1 D155A-1 D455A-1 D155A-2 D155A-2A Hydraulic Pump 07446-66100 07446-66200 07446-66102 07446-66104 Part Number: 07446-66100 07446-66200 07446-66102 07446-66104 Application: D150A-1 D155A-1 D455A-1 D155A-2 D155A-2A Condition: New Aftermarket Parts In Stock Key Features: Direct-fit...Regular price $ 896
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.