178-6633 Excavator Engine Cooling Water Pump

178-6633 Water Pump Technical Specifications

Pump Type:

Centrifugal water pump with cast iron impeller & die-cast aluminum housing

Flow Rate:

120 L/min (rated at 2200 r/min)

Working Pressure:

1.8 MPa (max), burst pressure ≥ 3.0 MPa

Sealing System:

Double mechanical seal with silicon carbide faces + Viton secondary seal, zero leakage under high temperature

Bearing:

High-temperature grease-lubricated sealed bearing, service life ≥ 5000 h

Working Temperature Range:

-40℃ ~ 135℃

Installation Standard:

OEM standard pulley-driven mounting, precise shaft alignment, plug-and-play with original belt and tensioner

Compatibility:

Perfect aftermarket replacement for CAT OEM part #178-6633, fully interchangeable with original pump, no modification required