Delonghi Gasket
If water or steam leaks from the boiler or one of its connections, a worn gasket or O-ring may be the cause.
Common Symptoms This Part May Fix
- Water leaking around the boiler or boiler connection
- Steam or water escaping from a sealed joint
- Leaks during heating or brewing
- A worn, flattened, hardened, or damaged seal
This seal is used on a boiler or related connection on compatible coffee machines. Over time, heat, pressure, movement, limescale, and age can reduce sealing performance and lead to leaks or poor operation.
Trusted by repair technicians and used in professional coffee machine repairs.
Important Information
Dimensions: Outer diameter 8.5 mm; inner diameter 4.5 mm; width 4.2 mm.
Delonghi Gasket Shaped Silicone For 5 mm Boiler Fitting
O-rings and gaskets are wear items. Where applicable, we generally recommend replacing them every 4 years as part of routine servicing, even when there are no obvious signs of damage.
Compatibility
This O-ring is mainly used on Delonghi boilers with 5 mm inlet and outlet tube connections, including boiler assembly 5513214291 (DELONGHI-1-1284) fitted to selected bean-to-cup coffee machines. It may also be used in other locations depending on the model, so please check the compatibility checker and exploded diagrams before ordering.
Please use the compatibility checker and the relevant exploded diagrams above to confirm your exact machine model, required quantity, and fitting location before ordering.
Manufacturer Part Numbers
5313228791, 5313217691
Need Help Finding the Right Part?
Not sure which part you need or whether it fits your coffee machine? Contact us before ordering and our team will help you identify the correct part for your model.
Common Questions
Can a worn boiler seal cause a leak?
Yes. A worn, flattened, cracked, or hardened seal may prevent the connection from sealing correctly, allowing water or steam to escape.
Should I replace this part during repair or servicing?
Yes. Replace it if it is damaged, flattened, brittle, hardened, or no longer seals correctly. Replacing ageing seals during routine servicing can also reduce the risk of leaks after reassembly.
Will this fit my machine?
Use the compatibility checker and exploded diagrams above to confirm your machine model, required quantity, and exact fitting location.
Is this a genuine part?
Yes. This is a genuine Delonghi replacement part.
If you are not sure what part you need please follow our Guide or Contact us here.
Please note we do not accept any kind of liability from incorrectly fitted parts. Wrongly fitted parts void warranty.
If you are not competent to carry out a repair, seek professional help here!
