Rancilio Group Head Portafilter Gasket High-quality, temperature- and oil-resistant OEM group head gasket for Rancilio machines. Rancilio has consolidated its lineup to a single gasket design, so this one gasket now fits every current Rancilio model, commercial and domestic. SPECIFICATIONS Dimensions: 73.5 x 57.5 x 8 mm Current Rancilio OEM part #: 36301051 (supersedes older 36301046) COMPATIBILITY Fits: All Rancilio group head machines, commercial and domestic Replaces: Rancilio 36301046 (old) / 36301051 (current); also supersedes the old Silvia-specific gasket (R_1007) Cross-references: Nuova Ricambi 700159, LF (Repa) 1486032, Ricambi Gardosi R018 INSTALLATION Simple DIY swap, see our group gasket maintenance guide for step-by-step instructions. PRO TIPS Install with the Rancilio lettering/logo facing up, it's a quick visual check that you've got the gasket oriented correctly before locking the portafilter in. This current gasket is slightly firmer than the old Silvia-specific version, so expect a touch more resistance locking in the portafilter for the first few uses as it seats.