Brake master cylinder seals for Chinese ev trike

Maintenance/Repairs
1

I have a 07 zap xebra truck. The seal at the rear of the master cylinder has given up and leaks fluid into the cab floor. I removed the maser cylinder and have disassembled. Problem is the there are no parts available for these guys. I’ve measured the rear seal and it is 20mm OD and 13mm ID. It has u shape profile. Where can I find such a seal? Is there a place to cross reference the dimensions of such parts?

Thanks

2

This is my go-to supplier for unique parts/components.

Tester

3

I’ll second Testor’s advice to hit McMaster Carr.

Be sure and get the right material (EPDM rubber) for the seal. Brake fluid eats nitrile rubber. Test the seal you bought in a small glass with brake fluid in it overnight. It is swells or melts - wrong material.

4

Thanks for the advice. Does that type of seal have a name? Cup, follower, wiper etc..

Also following the link to mcmaster I wasn’t able to locate any seals in epdm

5

That would be a U-shaped cup seal.

Tester