Rancilio Group Seal with Logo – 8mm Genuine OEM Replace a worn or leaking group seal on your Rancilio espresso machine with this genuine OEM group seal (8mm) featuring the Rancilio logo. The group seal (gasket) creates a pressure-tight seal between the portafilter and the group head — a worn seal causes leaking around the portafilter during extraction and makes the portafilter difficult to lock in. Specifications Thickness: 8mm Type: Standard rubber group seal with Rancilio logo Genuine OEM Rancilio part Compatibility Rancilio Silvia Rancilio commercial espresso machines When to Replace Portafilter is leaking around the group head during extraction Seal is hard, cracked, or deformed Portafilter is difficult to lock in or feels loose Routine maintenance every 6–12 months Frequently Asked Questions Is this a genuine Rancilio part? Yes, this is a genuine OEM Rancilio group seal with the Rancilio logo embossed on the seal. Can I install this myself? Yes — group seal replacement is a straightforward DIY task. Remove the old seal with a flathead screwdriver or seal pick, clean the group head recess, and press the new seal into place. Run a blank shot to seat the seal before use.