Description
Three-piece seal kit for De’Longhi La Specialista Maestro espresso machines.
This kit combines the group-head gasket with two high-temperature Viton O-rings for the manual steam-nozzle assembly—ideal when servicing leaks or worn seals in both the brewing and steam systems.
🧩 Compatibility
De’Longhi La Specialista Maestro: EC9665 series, including EC9665.M and regional EC9665 variants.
Please check the model number on the machine identification label before ordering. This kit is intended specifically for the EC9665 La Specialista Maestro platform.
📦 Kit contents
- 1 × replacement group-head seal
- 2 × high-temperature Viton steam-nozzle O-rings
📏 Group-seal specifications
- Approximate outside diameter: 58 mm
- Approximate inside diameter: 46 mm
- Approximate thickness: 8 mm
- Known De’Longhi group-seal references: AS00005075, 5313221491 and 53132C8198
⚙️ Common symptoms
- Water leaking around the portafilter during extraction
- A loose portafilter or reduced brew pressure
- Steam or moisture leaking around the removable steam nozzle
- Steam-nozzle seals that are hardened, flattened, cracked or damaged
🛠️ Fitting advice
Disconnect the machine from power and allow it to cool completely before servicing. Note the orientation of each original seal, clean the mating surfaces, and install the replacements without twisting or overstretching the O-rings. A light coating of food-safe silicone grease may assist O-ring installation.
