oem Original 390 395 Main Pump 593-3841 5933841 Excavator E390 E395 Hydraulic Pump

~180–200 cm³/rev (11–12.2 in³/rev) – optimized for the E390/E395’s high-power requirements.

Maximum: 532–560 L/min (140.5–148 GPM) at 2,000 RPM – sufficient to drive the excavators’ large hydraulic cylinders and auxiliary functions.

340–350 bar (4,931–5,076 psi) for main implement circuits.

370 bar (5,366 psi) for short-duration heavy loads (e.g., rock breaking or deep trenching).

Maximum Input Speed: 2,200–2,400 RPM (synchronized with the E390/E395’s engine speed, typically CAT C18 engines).