Rancilio Black Rubber Group Head Seal
This is the Rancilio group head seal in the original black rubber. It measures 74 mm across the outside, 57.5 mm inside and 8.5 mm thick, with notches on the outer edge. If water leaks around the portafilter or the handle swings past six o’clock, the old seal has hardened.
Rubber or silicone?
Rubber is the factory material and gives a firm, positive lock. It hardens slowly with heat, so plan to change it every six to twelve months on a busy machine. If you prefer a softer seal that stays pliable longer, there is a silicone version listed separately.
Specifications
- Rancilio 74 × 57.5 × 8.5 mm Group Seal Outer diameter: 74 mm
- Rancilio 74 × 57.5 × 8.5 mm Group Seal Inner diameter: 57.5 mm
- Rancilio 74 × 57.5 × 8.5 mm Group Seal Thickness: 8.5 mm
- Rancilio 74 × 57.5 × 8.5 mm Group Seal Material: Black rubber
- Rancilio 74 × 57.5 × 8.5 mm Group Seal Brand: Rancilio
- Rancilio 74 × 57.5 × 8.5 mm Group Seal Pack: 1 seal
Machines it suits
The old text lists Rancilio Silvia, Classe 6, 7, 8, 9, 10 and 11, Epoca and Promac Club. For the silicone alternative see the green silicone 74 × 57.5 × 8.5 mm seal, and replace the 57.5 mm shower screen at the same time if it is stained.
Old seals often crumble on removal; our Melbourne coffee machine repair team can fit it for you, and regular back-flushing helps a new seal last.





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