Gasket for Delonghi coffee machines 10 mm

If milk simply pours from the nozzle without frothing when making a cappuccino or latte, or if water leaks inside the machine into the drip tray or underneath it after using the steam function, the most common cause is a worn seal in the frothing circuit. This DeLonghi seal with part number 5313217751 is an o-ring designed for the inner tube of the milk frother and for the foam valve connector on the brewing unit thermoblock. It is a precise genuine part with an inner diameter of approximately 6.07 mm, an outer diameter of just under 10 mm, and a thickness of 1.78 mm — the correct replacement for leaks and pressure loss in the milk system.

Important — verify your model: before ordering, check the exact model and version of your machine (for example, the series code and EX designation on the rating plate), which you will find on the rating plate — usually on the underside of the machine or behind the water tank. This ensures the part fits your appliance correctly.

When does this part need replacing? (Fault symptoms)

This seal typically fails when you notice one of the following symptoms:

• Milk only flows from the nozzle and does not froth — only warm milk is produced, with no foam
• Water leaks from inside the machine into the drip tray or underneath the machine after using the steam function
• The machine produces unusual hissing sounds during milk-based drink preparation due to pressure loss
• Visible dripping or seeping from the frother area or steam nozzle during operation

Compatibility: Which models is this part for?

This part is compatible with the following DeLonghi machines:

Magnifica series (ECAM / ECA)

• ECA 13000 Magnifica
• ECA 13100 Magnifica
• ECA 13200 Magnifica
• ECA 13300 Magnifica
• ECA 13400 Magnifica
• ECA 13500N Magnifica
• ECA 13500S Magnifica
• ECA 12600 Corso

ESAM series (Caffè Corso / Caffè Venezia)

• Caffè Corso ESAM2500.B
• Caffè Corso ESAM2800.SB EX-1
• Caffè Corso ESAM2800.SB EX-1 S11
• Caffè Corso ESAM2803.SB S11
• Caffè Venezia ESAM2000
• Caffè Venezia ESAM220.S EX-1 S11
• Caffè Venezia ESAM2200.S
• Caffè Venezia ESAM2200.S EX-1
• Caffè Venezia ESAM2200.S EX-1 S11
• Caffè Venezia ESAM2200SJ

EAM series

• EABI 66.00
• EAM1200SJ
• EAM3 513.208 9
• EAM3500.S

ETAM Autentica series

• Autentica ETAM29.510.B
• Autentica Cappuccino ETAM29.660.S
• Autentica Cappuccino ETAM29.660.SB
• Autentica Cappuccino ETAM29.666.S
• Autentica Cappuccino ETAM29.666.T

Pump espresso machine EC series

• EC250 / EC250.B / EC250.W / EC250.W White
• EC251.B / EC251.W
• EC270 / EC270 110V Black / EC270 220V Black
• EC271.B
• EC420E Blue
• EC425 Blue
• EC430E Illy Red / EC430E Lavazza Pods Rogue / EC430E.B Black
• EC435 Black / EC435EX-C Black
• EC850.M
• EC860 / EC860.M / EC860.R Red

The following universal service codes also apply to this part: 019-820-0, 1782242, 335.530.2, 368-306-7, 416.479.4, 482919. If your exact model is not listed, verify compatibility by part number 5313217751 or contact our technical support team.

Genuine vs. compatible part

Brewive supplies this part as a genuine DeLonghi spare part with number 5313217751. The precise dimensions (inner diameter 6.07 mm, thickness 1.78 mm) ensure a reliable seal in the frothing circuit and correct seating in the original position. During installation, we recommend lightly lubricating the o-ring with food-safe silicone grease to extend its service life.

Delivery and returns

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