This is a MKI bell housing which a TYPE 1 ZF Bolts to. It does not have any cracks or was it welded on. Part numbers show X40 1036 then in a diamond it has HDA. 4 bolt pattern to trans. (Pictures to follow)
These are 2 pumps that are in good condiction and do work. These pumps were used on some race cars, I think mostly by US race teams (pictures to follow) 1-262-567-8488