The boiler-to-mechanical-valve hose (part no. 5513212881) is a replacement water hose for DeLonghi coffee machines that carries hot water from the boiler to the mechanical valve. If water is pooling beneath the machine or dripping into the drip tray, or if coffee flows only very slowly, the cause is often a cracked or leaking hose in the water circuit. This is the correct replacement part to restore a tight, unobstructed flow.
Important — verify your model: before ordering, confirm the exact model and version of your coffee machine (including the series code and EX designation) on the rating label. This is usually located on the underside of the appliance or behind the water tank. Doing so ensures this part will fit your machine precisely.
When does this part need to be replaced? (Fault symptoms)
This part typically fails when one or more of the following symptoms appear:
- Water leaking from beneath the machine or accumulating in the drip tray more than usual
- Coffee flowing very slowly, dripping, or not coming through at all
- Unusual hissing sounds during brewing caused by pressure loss
- Pressure drop in the water circuit, resulting in weak, watery espresso with little or no crema
Many customers are unfamiliar with the part name and search based on their symptoms. If water appears under the machine repeatedly with every brew, it is important to identify the exact source of the leak — a leaking hose between the boiler and valve is one of the most common causes.
Compatibility: Which models does this part fit?
This part is identified by its original order code 5513212881, not by dimensions or appearance. Searching by coffee-machine model alone is not always reliable, as different — and non-interchangeable — parts may have been used for the same model depending on the year of manufacture.
How to verify compatibility: the part code recorded in your machine's service documentation is the definitive reference. We recommend cross-checking 5513212881 against the part in your machine, or locating the code on the rating label and sending it to us — our service technicians will be happy to confirm fitment before you place your order.
Original vs. compatible part
This is a replacement part for DeLonghi coffee machines with specifications matching the original: approximately 270 mm in length, a metal ring at each end, and the seals required for installation included in the package. The matching geometry ensures correct seating in the water circuit, backed by guidance from our service technicians when selecting the right part.
Delivery and returns
The part is in stock and dispatched within 24 hours from the EU; expert technical support from our service technicians is also available. An unused and uninstalled part may be returned within 14 days under the statutory right of withdrawal.
Frequently Asked Questions
How do I know whether hose 5513212881 is compatible with my DeLonghi coffee machine?
The definitive reference is the original order code 5513212881, not the dimensions or appearance. Cross-check it against the part in your machine or send us the code from the rating label — our technicians will confirm fitment before you order.
Is this an original or compatible part, and does it include seals?
This is a replacement part for DeLonghi coffee machines with specifications matching the original. The hose is approximately 270 mm long, has a metal ring at each end, and the seals required for installation are included in the package.
How quickly will the part be dispatched, and can I return it?
The part is in stock and dispatched within 24 hours from the EU. An unused and uninstalled part may be returned within 14 days under the statutory right of withdrawal.
| Manufacturing company | De’Longhi Appliances S.r.l. |
|---|---|
| Address | Via L. Galvani, 22, 31100 Treviso TV, Italy |













