ISOMAC Coffee machine Pump

Isomac Coffee Machine Vibration Pump — ULKA EX5

If your Isomac espresso machine is producing weak or no water flow, making unusual noise during extraction, or failing to build pressure, the vibration pump is a common cause. This is the correct ULKA EX5 replacement pump for most Isomac espresso machines.

Part Details

• Brand: ULKA
• Model: EX5
• Outlet: Brass, 1/8" BSPF
• Inlet: 6mm
• Power: 48W
• Frequency: 50Hz
• Voltage: 230V
• Isomac Part No.: 451001

Compatible Models

Suits most Isomac espresso machines. Contact us with your model name to confirm compatibility before ordering.

Symptoms of a Failing Pump

• Weak or no water flow from the group head
• Pump pressure gauge reads low or doesn't move
• Loud rattling or grinding noise during extraction
• Pump runs but no water is delivered
• Machine takes much longer than usual to fill the boiler

Installation Notes

• Always unplug the machine before replacing the pump
• Photograph all hose and wiring connections before disconnecting
• Ensure inlet and outlet hoses are pushed fully onto the pump fittings and secured with clips
• After installation, run water through the machine before pulling a shot to prime the pump and purge air

Fast dispatch from Sydney. Australian stock.