Olympia Express Brew Group Gasket Silicone Maximatic – Ø66 × 54.5 × 5.7 mm, Factory Original
The original Maximatic silicone brew group gasket – the factory-installed version, outer diameter 66 mm, inner diameter 54.5 mm, height 5.7 mm. Soft, temperature-resistant, dimensionally stable in the brew group pressure range. Seals the transition between the portafilter and the brew group. Original part from Schwanden GL.
What makes this gasket special
Factory Original for the Maximatic
If you want to keep your Maximatic in its factory condition, this is the right choice. Silicone is softer than the PU variant (370252), which allows the portafilter to lock in smoothly and creates a gentle stop when tightening.
Precise Dimensional Specifications
Outer diameter 66 mm, inner diameter 54.5 mm, height 5.7 mm – matched to the Maximatic brew group. When installing, pull out the old gasket and insert the new one with light pressure.
At a glance
| Material |
Silicone |
| Outer Diameter |
66 mm |
| Inner Diameter |
54.5 mm |
| Height |
5.7 mm |
| Original Status |
Factory-installed in the Maximatic |
| Compatibility |
Olympia Express Maximatic |
| Olympia Item No. |
380254 |
| Origin |
Schwanden, Canton Glarus, Switzerland |
Silicone or PU – an honest comparison
Silicone (Factory Original): softer, pliable
This gasket here. The Maximatic factory version, gentler when tightening.
PU 95 Shore A (red): pressure-stable, durable
The PU variant 370252 is harder, more dimensionally stable, longer service life – good for frequent users.
Who this gasket is made for
For Maximatic owners who want to keep the factory setup. Replacement interval for silicone: 1–2 years with intensive use.
Accessories that match Maximatic maintenance
PU variant as a durable alternative: in our Olympia Express Collection. Maximatic shower screen for general brew group overhaul: also there. Cleaning powder: Machine and Grinder Cleaning Collection.
Frequently asked questions
Is this the factory gasket?
Yes. Olympia specifies this silicone variant as the factory-installed Maximatic brew group gasket.
What is the difference to the PU variant?
Silicone is softer and corresponds to the factory original. PU with 95 Shore A is harder and more durable. Silicone for original fidelity, PU for frequent users.
Where can I buy the gasket or see it live?
Online via coffeecoachingclub.ch with delivery in 2–4 business days throughout Switzerland and to Liechtenstein. On-site in our showrooms in Bern (Gerberngasse 44, 3011 Bern) and Zurich (Hagenholzstrasse 50b, 8050 Zurich). Click and Collect possible.
Roaster's Tip
The silicone variant is the factory original – if you want to keep your Maximatic in its authentic original condition, this is the right choice. Our opinion, one of many.
