Delonghi O-Ring 02037 Green Viton
If a milk-carafe coupling leaks or no longer seals correctly, a worn 02037 green Viton O-ring may be the cause.
Common Symptoms This Part May Fix
- Leaks around a milk-carafe coupling
- Poor connection between the carafe and machine
- Milk or water escaping from the coupling
- A flattened, cracked, or missing O-ring
This genuine Delonghi O-ring is used for milk-carafe couplings on many compatible Delonghi machines. Usually two O-rings are fitted to the coupling so you may need to purchase 2 if your coupling requires 2 of this o-ring. This O-ring is also used in other locations on some machines, so check compatibility and diagrams. Over time, heat, pressure, movement, limescale, and age can reduce sealing performance and lead to leaks.
Trusted by repair technicians and used in professional coffee machine repairs.
Important Information
Dimensions: Ring thickness 1.78 mm; internal diameter 9.25 mm.
Inspect all sealing surfaces before fitting and replace any damaged, flattened, hardened, or split seals. Reusing worn seals may result in leaks after reassembly.
O-rings are wear items and we generally recommend replacing them every 4 years as part of routine servicing, even when there are no obvious signs of damage.
Compatibility
This part may be used in different locations depending on the coffee machine model. Please use the compatibility checker and the relevant exploded diagrams to confirm both your machine model and the exact fitting position before ordering.
Manufacturer Part Numbers
5313220031
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 O-ring cause leaks around the milk carafe coupling?
Yes. A worn, flattened, cracked, or hardened O-ring may prevent the coupling from sealing correctly, allowing steam, or water to leak from the connection.
Is this O-ring only used on the milk-carafe coupling?
No. This is its main application on many compatible Delonghi machines, but the same O-ring may also be used in other internal fittings and connections depending on the model.
Should I replace this O-ring during repair?
Yes. Replace it if it is damaged, flattened, brittle, or no longer seals correctly. Because seals are wear items, we also generally recommend replacement every 4 years during routine servicing, even if damage is not obvious. Reusing an old seal can cause leaks after reassembly.
Will this fit my machine?
Use the compatibility checker and the relevant exploded diagrams to confirm your machine model and the 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!
