I am sure this is a silly question.. I just purchased my first LR90 ('91 200tdi) and selecting parts online. They give a few options for say fuel sending units with series "TO AA243342", then two others. I figure this should correspond to the VIN serial number or last 6 digits but not seem to fit mine ..HA701957. Im sure Im missing something obvious but need to get this part on order. Can anyone point me in right direction? Should say i am looking for the best fit repair manual(s) as well. Many seem to be for non 90 200tdi or other earlier or later models. Thank you!