Rubber pump connector for Delonghi coffee machines

Pump Connector

The pump connector joins the water hose to the pump body or to a valve in the coffee machine's water circuit. It ensures a tight, secure connection through which water flows during coffee preparation or when supplying the steam wand. It typically includes a rubber or silicone seal that must fit perfectly to keep the joint from leaking.

Typical signs of wear

Brittle or cracked rubber on the connector causes water to leak around the pump, resulting in a pressure drop and uneven dosing. The coffee machine may report a flow error, the pump may run more noisily, or it may run dry and draw in air through the leaky joint instead of water.

When it's time for a replacement

A leaking connector gradually dampens the surrounding components and electronics, which can lead to a more serious failure of the entire water system. Timely replacement is a quick and inexpensive fix that prevents more serious damage to the pump.

How to choose the right part

• Check the shape and number of outlets on the connector against the original part
• Verify compatibility in the product's compatibility table
• When replacing it, also check the condition of the adjacent hoses

Compatible with

• ESAM6700 EX:1 PrimaDonna Avant
• ESAM04.350.S Magnifica
• ESAM3550.B Pronto Cappuccino
• ESAM5400 EX:1 Perfecta
• ESAM5400.BW Perfecta
• ESAM5400.GD EX:1 Perfecta
• ESAM5400.R EX:1 Perfecta
• ESAM5400.S EX:1 Perfecta