Im not sure if i can go to Partco with this number and get one there, but its a Clutch slave cylinder. The only other car i can find that it is used on, is the Delorean!
Your local partco should be able to cross reference it.
Rob
Nope, no joy at all in any of the local motor factors.
Looks like the broadly published number (and the one on the side of the unit) is a casting number.
you got a pic of it??