seals solenoid valve from F1 box control

They're not available as spare parts. Just size them and replace with generic O-rings....

 

If you decide to replace the O rings, make sure they are made of material that withstands the properties of the F1 fluid.

Give Magneti Marelli US division a call and see if they can help you. They should have a direct line with the main company.
Tel +1 248-418-3000

 

The F1 fluid is just ATF so as long as the o-rings can withstand that they will be fine.
There is a thread on here where this was covered in detail.
I’ll see if I can find it and link it.
The solenoid valves are actually supplied by Eaton.

 

https://www.ferrarichat.com/forum/threads/interesting-finding-on-f1-system.515154/


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I'd go to harbor freight and get those boxes of O-rings, throw them in some Power Steering fluid and see if they degrade.