Milk jug connection for Delonghi EN 510 Nespresso machines

Are you noticing milk or water leaking from your coffee machine at the point where the milk container attaches during milk-drink preparation? The cause is frequently a worn or damaged milk container connector (steam coupling) with part number 7313267161. This is the port on the De'Longhi Lattissima One EN 510 Nespresso where the milk container — or the descaling nozzle — connects. This is the correct replacement part if the original connector is leaking, cracked, or no longer holding the container firmly in place.

Important — verify your model: before ordering, confirm the exact model designation and its version (for example, the code EN 510.B) on the rating label. The label is typically located on the underside of the machine or behind the water tank. This ensures the connector will fit your specific machine correctly.

When does this part need replacing? (Fault symptoms)

This part typically fails when you observe one or more of the following symptoms:

• Milk or water leaks at the point where the milk container connects to the machine
• The milk container cannot be seated securely, or it does not stay in place and falls off after fitting
• Steam escapes during cappuccino or latte macchiato preparation — the machine hisses and loses pressure
• The connector is visibly cracked, deformed, or has a broken plastic section after a drop

Compatibility: Which models is this part for?

This part is compatible with the following machine:

De'Longhi Lattissima One Nespresso Series

• De'Longhi Lattissima One EN 510
• De'Longhi Lattissima One EN 510.B

The product identity explicitly lists only the Lattissima One EN 510 Nespresso machine. No additional models are listed here, as a complete compatibility list was not supplied for this part. If you are unsure whether the connector will fit your version, contact our technical support team and we will verify it together using the part number and the code from your rating label.

Original vs. compatible part

This is a replacement part for De'Longhi Lattissima One EN 510 Nespresso machines, listed under part number 7313267161. Before installation, we recommend comparing the part number against your original connector to confirm correct fitment. Our service technicians are available to help you identify the part without ambiguity should any doubt arise.

Delivery and returns

The part is in stock and dispatched within 24 hours from the EU, with expert technical support from our service technicians available throughout. An unused and uninstalled part may be returned within 14 days under the statutory right of withdrawal.