51 mm Group Head Seal for Older Breville Machines
The group seal is the soft ring the portafilter presses against. On 51 mm Breville machines it slowly hardens from heat, and the first sign is usually coffee running down the outside of the handle or the portafilter turning further than it used to.
Soft Silicone That Lasts
This replacement is moulded in clear silicone, which stays flexible longer than the original rubber. Supplier measurements are about 58 mm outside, 42 mm inside and 7 mm thick, so compare it with the seal you pull out.
Specifications
- Breville 51 mm Group Seal Portafilter size: 51 mm
- Breville 51 mm Group Seal Outside diameter: approx. 58 mm
- Breville 51 mm Group Seal Inside diameter: approx. 42 mm
- Breville 51 mm Group Seal Thickness: approx. 7 mm
- Breville 51 mm Group Seal Material: Silicone
- Breville 51 mm Group Seal Pack size: 1 seal
Compatible Models
Listed for the Breville 800ES, 800ESC, 800ESR, 800ESXL, BES820, Bar Vista BES200, Venezia BES250, Cafe Platinum BES250S, Cafe Venezia BES230, Cafe Roma ESP6 and ESP8 ranges, plus the Kambrook KES150. Newer 54 mm Brevilles use the BES810–BES870 group seal.
Old seals can be stubborn to dig out, and our coffee machine repair team can fit it for you. Browse more spare parts.




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