O-Ring 02037 Green Viton
If the milk-carafe coupling is leaking steam or water, drawing air, or no longer sealing correctly, a worn 02037 green Viton O-ring may be one of the most common causes.
Common Symptoms This Part May Fix
- Steam or water leaking around the milk-carafe coupling
- Air entering through a poorly sealed coupling
- Poor or inconsistent milk-system performance
- Flattened, cracked, hardened, or missing O-ring
This compatible replacement 02037 green Viton O-ring is mainly used on the milk-carafe coupling of selected Delonghi coffee machines. Two O-rings are usually fitted to the coupling. Depending on the machine model, the same O-ring may also be used in other internal fittings and connections.
Over time, heat, pressure, movement, and age can cause O-rings to harden, flatten, or lose their sealing ability, resulting in steam, water, or air leaks.
Trusted by repair technicians and used in professional coffee machine repairs.
Important Information
This is a compatible replacement O-ring for 5313220031 and is not manufactured or supplied by Delonghi.
Dimensions: Ring thickness 1.78 mm; internal diameter 9.25 mm.
The shade of green may vary without affecting the fit or function of the O-ring.
We recommend replacing both O-rings on the milk-carafe coupling if one is worn, flattened, hardened, or damaged. Reusing old seals may result in leaks or poor sealing 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 O-ring is mainly used on the milk-carafe coupling of selected Delonghi coffee machines, but it may also be fitted in other locations depending on the model.
Please use the compatibility checker and exploded diagrams above to confirm your machine model, the required quantity, and the correct fitting position before ordering.
Replacement Part Number
DELONGHI-1-1494-replacement
Need Help Finding the Right Part?
Not sure which O-ring you need or whether it fits your coffee machine? Contact us before ordering and our team will help you identify the correct seal for your model.
Common Questions
Can worn O-rings cause leaks around the milk-carafe coupling?
Yes. Worn, flattened, cracked, or hardened O-rings may prevent the coupling from sealing correctly, allowing steam, water, or air to escape from the connection.
How many O-rings are fitted to the coupling?
Two O-rings are usually fitted to the milk-carafe coupling. Check the exploded diagram for your machine before ordering, as the quantity and fitting position may vary by model.
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, hardened, or no longer seals correctly. We also generally recommend replacing O-rings every 4 years during routine servicing, even if the damage is not immediately visible.
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 Delonghi part?
No. This is a compatible replacement O-ring designed for selected Delonghi coffee machines.
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!
