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Hydraulic Pumps for Excavators & Heavy Machinery

Hydraulic pumps for excavators are the primary energy converters of your machine. While internal combustion engine power provides the initial rotation, it is the hydraulic pump that transforms this force into fluid power. By moving hydraulic fluid under extreme pressure, these pumps enable the lifting and digging capabilities of all heavy machinery.

Reliable hydraulic pumps are essential for maintaining peak system performance. When pump efficiency drops, it places a parasitic load on the engine, affecting everything from your air-fuel mixture to your overall fuel injection efficiency.

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205 products

Hydraulic Main Pump PVD-2B-36L 4331671 4358274 4399045 for Hitachi EX30-2 Excavator

Hydraulic Main Pump PVD-2B-36L 4331671 4358274 4399045 for Hitachi EX30-2 Excavator

Regular price $2,813.00
Sale price $2,813.00 Regular price
Hydraulic Pump 369-9655 576-3072

Hydraulic Pump 369-9655 576-3072 for Caterpillar Excavator 374F 390F

Regular price $11,829.00
Sale price $11,829.00 Regular price
PSVL-54CG Hydraulic pump for Kubota U50

PSVL-54CG Hydraulic Pump for Kubota U50 Excavator

Regular price $4,184.00
Sale price $4,184.00 Regular price
Hydraulic Pump AT455737 AT302661 For John Deere

Hydraulic Pump AT455737 AT302661 for John Deere 872G Grader

Regular price $5,626.00
Sale price $5,626.00 Regular price
Hydraulic Pump 720-2M-00081 for Komatsu Dozer

Hydraulic Pump 720-2M-00081 for Komatsu D31 D37 Bulldozer

Regular price $27,856.00
Sale price $27,856.00 Regular price
Double Piston Pump | Axle Piston Pump

Double Axle Piston Pump 20R-9516 for Caterpillar – Rebuild Hydraulic Pump

Regular price $12,089.00
Sale price $12,089.00 Regular price
A2FO16/61L Bosch Rexroth Pump - Imara Supplies

Bosch Rexroth A2FO16/61L Hydraulic Pump

Regular price $1,804.00
Sale price $1,804.00 Regular price
Hydraulic Pump 708-1S-11212 for PC35MR2 PC55MR-2 PC50MR

Hydraulic Pump 708-1S-11212 for PC35MR2 PC55MR-2 PC50MR - Excavator

Regular price $3,596.00
Sale price $3,596.00 Regular price
Hydraulic Pump 11347379 11347379A For Liebherr R9350 Excavator

Excavators

Hydraulic Pump 11347379 For Liebherr R9350 R994 - Excavator

Regular price $37,507.00
Sale price $37,507.00 Regular price
Hydraulic Pump K5V200DPH 20/925652 332/K4487 for JCB JS330

Excavators

Hydraulic Main Pump K5V200DPH 20/925652 332/K4487 for JCB JS330 Excavator

Regular price $6,492.00
Sale price $6,492.00 Regular price
Hydraulic Piston Pump | Bull Dozers | Imara Engineering Supplies

Excavators

Hydraulic Piston Pump 705-58-44050 for Komatsu Bulldozer D375A-3 / D375A-5

Regular price $3,968.00
Sale price $3,968.00 Regular price
Hydraulic Pump 14633611 for VOLVO EC55

Excavators

Hydraulic Pump 14633611 AP2D25LV1RS7-898-3 for Volvo EC55 / EC55B Excavators

Regular price $2,525.00
Sale price $2,525.00 Regular price
Hitachi ZX40U-2 Hydraulic Pump PVK-2B-505-CN-4962D

Hydraulic Pump PVK-2B-505-CN-4962D, 4615640 for Hitachi ZX40U-2 - Excavator

Regular price $2,525.00
Sale price $2,525.00 Regular price
Hydraulic Pump 705-11-38010 705-11-38011 705-55-34181 705-55-34180

Excavator Hydraulic Pump WA380-3 WA350-3X for D60P-12-E 705-11-38010 705-11-38011 705-55-34181 705-55-34180

Regular price $794.00
Sale price $794.00 Regular price
Kawasaki Hydraulic Pump K7V Series | Excavator Main Pumps

Kawasaki Hydraulic Pump K7V K7V63DTP K7V125DTP

Regular price $4,977.00
Sale price $4,977.00 Regular price
K5V200DTH-9N2Y Main Hydraulic Pump for Volvo EC480D

K5V200DTH-9N2Y Main Hydraulic Pump for Volvo EC480D

Regular price $4,256.00
Sale price $4,256.00 Regular price
K5V160DT-158R-1E05-V Hydraulic Pump

Hydraulic Pump VOE14632316/K5V160DT-158R-1E05-V for Volvo Excavator EC300D EC300E

Regular price $4,977.00
Sale price $4,977.00 Regular price
Hydraulic Main Pump | Assembly Komatsu | Imara Engineering Supplies

708-3S-00111 Hydraulic Main Pump Assembly for Komatsu PC28MR PC30MR PC35MR PC40MR PC50MR Excavator

Regular price $2,886.00
Sale price $2,886.00 Regular price
Hydraulic Pump Assy HPV95 708-2L-00460 for Komatsu PC200 Excavator

Hydraulic Pump Assy HPV95 708-2L-00460 for Komatsu PC200 PC200-4 PC200-6 Excavator

Regular price $5,410.00
Sale price $5,410.00 Regular price

Collection: Hydraulic Pumps

The Power Source: From Engine to Fluid

In most internal combustion engines, the crankshaft drives the pump gear. This mechanical connection means that the health of internal engine parts, such as connecting rods and the cylinder wall, directly impacts your hydraulic output. As the pistons move within the engine, they generate the torque necessary to spin the pump's internal rotors.

To keep the system running smoothly, a stable electrical power system is required to manage electronic regulators. Without proper electrical system maintenance, the sensors that monitor flow rates can fail, leading to pressure spikes that stress both the hydraulic lines and internal engine components.

Protecting the Hydraulic and Electrical System

The synergy between the cooling system and the hydraulics is vital. If the hydraulic pump overheats, it can thin the oil and damage seals, much like how a failing oil pump or a clogged oil filter can destroy a gasoline engine.

To ensure electrical safety, modern machines use circuit breakers to protect the electrical components that control pump displacement. These breakers prevent surges from damaging the sensitive solenoids that act as a moving part within the hydraulic control valves.

Comprehensive Hydraulic Pump Range

We offer a wide selection of aftermarket hydraulic pumps designed to meet or exceed OEM standards. These units are built to withstand the high-vibration environments of mining and construction.

  • Piston Pumps: High-efficiency units where pistons move to provide variable flow rates.
  • Gear Pumps: Simple, robust designs that function as a reliable power source for auxiliary circuits.
  • Pilot Pumps: Low-pressure pumps that ensure your control valve opens with precision.

Proper regular maintenance of these pumps, including checking the oil filter and ensuring the cooling system is clear, is the best way of improving performance and extending the life of your fleet.

Frequently Asked Questions

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