Oil filters and Inno blank keys - Larry Dalphy
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I compiled the list by cross referencing each filter. I have tried some, and verified the specifications and so far all are correct. However I take no personal responsibility if any of these fail, and if anyone has different information, please remove from the list.

a) oil filters (equivalent to Unipart GFE 148/166)

WIX 51374
Purolator L10028
Fram PH966B
Beck-Arnley 041-9888
Pipercross OF106-RBT
Baldwin B288
Hastings LF155
Casite CF966
Bosch OF106

b) high performance filters, Unipart GFE 21.

Regarding blank keys for the Innocenti 1300 Export, I have the following information.

a) Ignition switch (FIAT key)
    Taylor X113
b) Door switch (FIAT key)
    ILCO 62FS
c) gas tank (FIAT key)
    Borkley 1043-1/2