A silicone group head seal for Breville espresso machines with a 54mm portafilter, including the BES810, BES840, BES860, BES870, BES875, BES878 and BES880.

The group head seal is the ring the portafilter locks against. When it hardens or cracks, water leaks around the handle, the portafilter swings too far and shots lose pressure. Replacing it is one of the most common maintenance jobs on a Barista Express or similar Breville machine. This seal is made from food-grade silicone, which stays flexible and is easy to press into the groove. Buy one seal, or a 2 pack so the next one is on hand.

What You Get

Specifications

Fit check: these models use a 54mm portafilter. Machines with a 58mm portafilter, such as the Dual Boiler and Oracle range, need a different seal. If your portafilter swings past about 6 o'clock or water leaks around it during a shot, the seal is due for replacement.

Why Buy This Breville Group Head Seal

• Stops leaks - a fresh seal closes the gap around the portafilter
• 54mm Breville fit - suits BES810 to BES880 models
• Food-grade silicone - stays flexible under heat
• Easy to fit - soft silicone presses into the groove
• 2 pack option - keep a spare for next time

Care & Use

Turn the machine off, let it cool and unplug it. Remove the shower screen, then lever out the old seal with a small flat screwdriver, taking care not to scratch the group head. Clean the groove, press the new seal in evenly all the way round, and refit the shower screen. Wipe the seal after each session and backflush regularly to keep coffee oils from building up.

Please allow a small measurement tolerance due to manual measurement, and slight colour variation due to different monitor settings.

Where It Gets Used

Home baristas fit a new seal when their Barista Express or Infuser starts leaking around the portafilter, usually after a year or two of daily use.

Cafe owners running small Breville machines in offices or rentals keep spares for routine servicing.

Frequently Asked Questions

Which machines does it fit?
Breville machines with a 54mm portafilter, including the BES810, BES840, BES860, BES870, BES875, BES878 and BES880.

Will it fit the Dual Boiler or Oracle?
No. Those machines use a 58mm portafilter and need a different seal.

How do I know my seal needs replacing?
Leaks around the portafilter, a handle that swings too far, or a hard and cracked seal are the usual signs.

What is it made from?
Food-grade silicone.

How often should I replace it?
It depends on use. Many home users replace it every 6 to 12 months, or sooner if it starts leaking.

Fast Australian Shipping

Ships from Sydney with GST included in every price. We deliver Australia-wide — Sydney, Melbourne, Brisbane, Perth, Adelaide, Hobart, Canberra and Darwin — with tracking provided on dispatch.

This is a generic replacement part and is not made by or associated with Breville. Brand and model names are used only to describe compatibility.