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Heavy-Duty Main Hydraulic Pumps & High-Pressure Piston Pump Assemblies
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Hydraulic Pump 07429-71203 for Komatsu Bulldozer D53A-16 D53P-16 D53S-16 D57S-1 D58E-1 D58P-1
Hydraulic Pump 07429-71203 for Komatsu Bulldozer D53A-16 D53P-16 D53S-16 D57S-1 D58E-1 D58P-1 Part Number: 07429-71203 Application: for Komatsu Bulldozer D53A-16 D53P-16 D53S-16 D57S-1 D58E-1 D58P-1 Condition: New Aftermarket Parts In Stock Key Features: Direct-fit replacement: No...Regular price $ 389 -
Hydraulic Pump 07448-66500 07448-66802 07448-66200 07448-66102 07448-66108 for Komatsu Bulldozer D355A-3 D355A-3X D355A-5
Hydraulic Pump 07448-66500 07448-66802 07448-66200 07448-66102 07448-66108 for Komatsu Bulldozer D355A-3 D355A-3X D355A-5 Part Number: 07448-66500 07448-66802 07448-66200 07448-66102 07448-66108 Application: for Komatsu Bulldozer D355A-3 D355A-3X D355A-5 Condition: New Aftermarket Parts In Stock Key Features: Direct-fit...Regular price $ 1,068 -
Hydraulic Pump 705-22-44070 For Komatsu Wheel Loader WA500-3 WF550-3D WA500-3L
Hydraulic Pump 705-22-44070 For Komatsu Wheel Loader WA500-3 WF550-3D WA500-3L Part Number: 705-22-44070 Application: For Komatsu Wheel Loader WA500-3 WF550-3D WA500-3L Condition: New Aftermarket Parts In Stock Key Features: Direct-fit replacement: No modification required for installation....Regular price $ 798 -
Hydraulic Pump 705-51-20070 for Komatsu WA180-1 WA300-1 WA320-1 WA320-1LC Loader
Hydraulic Pump 705-51-20070 for Komatsu WA180-1 WA300-1 WA320-1 WA320-1LC Loader Part Number: 705-51-20070 Application: for Komatsu WA180-1 WA300-1 WA320-1 WA320-1LC Loader Condition: New Aftermarket Parts In Stock Key Features: Direct-fit replacement: No modification required for installation....Regular price $ 668 -
Hydraulic Pump 705-52-42090 7055242090 for Komatsu Dump Truck 330M HD985-5 HD985-3 HD785-3 HD785-5
Hydraulic Pump 705-52-42090 7055242090 for Komatsu Dump Truck 330M HD985-5 HD985-3 HD785-3 HD785-5 Part Number: 705-52-42090 7055242090 Application: for Komatsu Dump Truck 330M HD985-5 HD985-3 HD785-3 HD785-5 Condition: New Aftermarket Parts In Stock Key Features: Direct-fit...Regular price $ 2,868 -
Hydraulic Pump 705-56-47000 7055647000 for Komatsu Wheel Loader WA600-3 WA600-3D
This new aftermarket hydraulic pump assembly is designed as a direct replacement for for Komatsu Wheel Loader WA600-3 WA600-3D. Built to specifications, it delivers stable hydraulic performance and reliable operation in demanding jobsite conditions. Hydraulic Pump...Regular price $ 3,668
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.