There were three versions:
Finis 1053379 - 1st Jun 1997 to 15th Jan 1999
Finis 1093855 - 15th Jan 1999 to 15th Feb 2000
Finis 1112051 - 15th Feb 2000 to 11th Dec 2001
You should fit a new seal if getting from a breakers - Finis 6177705
Cheers dudes. Got it after getting another tank fitted yesterday as mine was leaking petrol. Will prob just chuck it on ebay, the mechanic said they're worth up to 50 quid all day long.