Is there any other tank sending unit that will fit in a mk2?

[lo-vw]

I cant seem to find a fuel sending unit for a mk2 1.6l na
Anyone know the part number?

Will a mk3 tdi fit?


I think this is the same by the looks of it but cant tell.

http://www.ebay.co.uk/itm/VW-CADDY-DIES ... 35b0b7a49b