The gasket that keeps the boiler sealed when the heating element has to come out
Every time a heating element is taken out of the boiler, the gasket underneath should be replaced. It has spent years under pressure and heat and has become permanently deformed – reusing it means opening everything up again shortly afterwards.
This flat gasket measures 55 × 42 × 2 millimetres and is listed under part numbers LR360 and LR360.01. It is not an electrical component itself, but the sealing element on the heating element's flange.
When it is due
This gasket is due when one of the following applies:
- Water or steam is escaping at the heating element flange.
- The boiler loses pressure without a leak anywhere else.
- The heating element is being removed anyway – in that case, the gasket should always be replaced.
- The old gasket is hard, cracked or visibly compressed.
At a glance
| Type |
Flat gasket |
| Installation location |
On the heating element flange in the boiler |
| Fits |
La Marzocco machines with this heating element flange. We can tell which gasket your machine uses from the serial number – just drop us a quick message. |
| Scope of delivery |
One gasket |
| Part number |
LR360 and LR360.01 |
| Version |
55 × 42 × 2 mm |
| Installation |
Installation by a qualified professional recommended |
| Brand |
La Marzocco |
Important for installation
This gasket sits on the boiler, i.e. on a pressurised component and in close proximity to mains voltage. We deliberately do not provide step-by-step instructions for it. The replacement belongs in the hands of a qualified professional who disconnects the machine from the power supply, depressurises and drains the boiler, and then checks it for leaks. If you do not have a service partner, get in touch with us.
Who it is for
For service technicians and workshops replacing a heating element or repairing a leaking flange, and for businesses that keep suitable gaskets ready for planned servicing.
What goes with it
From our workshop
Before every boiler service in Bern and Zurich, we have all the gaskets ready that we might need – otherwise a missing flat gasket keeps a machine out of service for a whole day. That is our preparation, not a manufacturer requirement. While the machine cools down, we drink filter coffee, often the Cozy Chocolate.
Returns excluded
Service parts are excluded from exchange and return. They are sourced specifically for each order and cannot be resold after installation or test fitting on the machine. So before ordering, check the model, year of manufacture and serial number of your machine – or drop us a quick message and we will work out the fit together. Your rights in the case of defective goods remain unaffected.
Frequently asked questions
Is this an electrical component?
No. This is the gasket on the heating element flange, purely a sealing element. We do not sell heating elements themselves online.
Does the gasket fit my machine?
The dimensions are 55 × 42 × 2 mm. Send us the model and serial number and we will check it before you order.
Can I reuse the old gasket?
We advise against it. It has become permanently deformed under pressure and heat and no longer seals reliably.
Why two part numbers?
The manufacturer lists this item under LR360 and LR360.01. Both numbers refer to the same gasket.
Can I pick up the part from your showroom?
Yes. We have two showrooms: Bern at Gerberngasse 44 and Zurich at Hagenholzstrasse 50b. Drop us a quick message saying which part you need, and we will have it ready and look at it together on your machine.
Not sure whether this part fits your machine? Write to us with the model and serial number at [email protected] and we will check it for you. We deliver across Switzerland and to Liechtenstein in 2-4 working days.
