ok so i found the part I was looking for on the motomobil website. The picture is really small and blurry but scaling it up on with Paint my screen to roughly the size of the real part allowed me to get the missing dimention witch is the lenght between the rubber seal and the flat part that sit on the oil dipstick tube.

the length is from the collar to
High level : 34.5 cm
Low level : 37 cm
The bottom : 38.8cm






The link:
https://www.motomobil.com/en/product...0kw-61670460-1