CAT 349 352 Hydraulic Pump 574-0598 5740598 Excavator Original Main Piston Pump Parts

Product Name: Main Hydraulic Piston Pump, GP‑PISTON

OEM Part Number: 574‑0598, 5740598

Fit Machine: CAT 349, 352 Large‑size Hydraulic Excavator

Product Type: Twin‑variable axial piston main pump with electronic load‑sensing control

Condition: Original new construction machinery spare part

Gross weight: 309.5 kg

Packaging dimensions: 52 cm * 91 cm * 61 cm

• Genuine original hydraulic power source, perfectly matched to CAT 349 / 352 electronic‑controlled hydraulic system, no programming adjustment needed after installation
• Dual‑pump variable displacement structure, delivers sufficient flow for heavy‑load digging, lifting and continuous mining‑site operation
• High‑precision piston, cylinder block and valve plate assembly, excellent volumetric efficiency under long‑hour high‑pressure working status
• Built‑in electronic displacement regulator, realizes intelligent power matching to reduce fuel consumption and hydraulic heat loss
• Strict factory pressure‑testing and running‑inspection before delivery, stable response for boom, arm, bucket and travelling composite movements

Pump Type: Twin‑variable axial piston pump

OEM No.: 574‑0598

Total Max Displacement: 2*130 ml/r

Maximum System Flow: 779 L/min

Rated Working Pressure: 35 MPa

Peak Pressure (Lift‑up Mode): 38 MPa

Rated Input Speed: 2000 rpm

Control Mode: Electronic load‑sensing power control

Drive Shaft: Splined input shaft

Main Oil Inlet & Outlet: SAE standard flange connection

Case Drain Port: G 3/4

Mounting Standard: CAT original 6‑bolt installation flange

Net Weight: 278 KG

Applicable Excavator Tonnage: 50‑56 Ton Large Excavator