54mm Silicone Steam Ring Seal Replacement for Group Head Gasket - Boss Fit for Barista Express Pro Duo-Temp Bambino Infuser Espresso Machines - Tight Leak-Free Seal for BES870XL BES860XL BES840XL BES810BSS BES450 BES500 BES878 BES880

54mm Silicone Group Head Gasket for Breville Espresso Makers
✔️ 54mm silicone gasket seals BES870XL/BES880/BES878/BES840XL

The 54mm silicone steam ring is an exact replacement seal designed for Breville espresso machines. This gasket sits in the group head groove to form a tight, leak-free seal during extraction, ensuring consistent pressure and flavor. Compatible with BES870XL BES860XL BES840XL BES810BSS BES450 BES500 BES878 BES880 and Infuser.

✅ 54mm silicone steam ring for leak-tight group head seal
✅ Food-grade, BPA-free silicone, safe for espresso extraction
✅ Precise fit in the groove; reliable seal under pressure
✅ Heat resistant up to 600°F / 320°C for long life
✅ Replaces Breville/Sage parts SP0001474 SP0025526 SP0020019
✅ Obsolete numbers BES870XL/02.6 BES860XL/02.6 BES840XL/138

💡 What is a silicone group head gasket replacement used for in Breville espresso machines?

This handy seal helps prevent leaks and maintains extraction pressure. - keeps pressurized water from escaping the group head during extraction
- supports consistent espresso flavor and crema
- simple swap for worn gaskets to extend machine life