One is: Bosch 3 398 699 136 (FIAT 5895504) for RHD, I think.
The other could be: Bosch 3 398 699 138 (FIAT 5895408).
Might be for LHD. Need to check.
Something to check. Once I replaced the non-return valve/splitter the jets started to work much better.
These are sometimes available