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Porsche 928 Transmission Codes (All Years)

Porsche 928 Transmission Codes

We have already gone into depth on Porsche 928 option codes and 968 parts catalogs, but our more technical readers asked us for detailed transmission codes so we decided to create this dedicated page. In the table below you can find all the information on the transmission codes and options for the 928, including model years and variants.

Code Transmission Model Model years
A22.01 3-speed automatic 928 Euro 1978, 1979,
A22.01 3-speed automatic 928 all markets 1980, 1981, 1982,
A22.02 3-speed automatic 928 America Japan 1978, 1979,
A22.04 3-speed automatic 928 S Euro 1980, 1981, 1982, 1983,
A28.01 4-speed automatic 928 S America Japan 1983, 1984,
A28.02 4-speed automatic 928 S Euro 1984,
A28.03 4-speed automatic 928 S Euro 1984,
A28.04 4-speed automatic 928 S Euro CAT, America, Japan 1985,
A28.05 4-speed automatic 928 S Euro (14:33) 1985,
A28.06 4-speed automatic 928 S Euro (13:33 shorter gear ratio M251) 1985,
A28.07 4-speed automatic 928 S America Japan 1986,
A28.08 4-speed automatic 928 S Euro (14:33) 1986,
A28.09 4-speed automatic 928 S Sweden Switzerland Australia (13:33 shorter gear ratio M251) 1986,
A28.11 4-speed automatic 928 S Euro CAT 1986, 1987,
A28.12 4-speed automatic 928 S4 America Japan 1987, 1988,
A28.14 4-speed automatic 928 S4 Euro 1987, 1988,
A28.16 4-speed automatic 928 S4 all markets 1989, 1990, 1991,
A28.18 4-speed automatic 928 GTS 1992, 1993, 1994, 1995,
G28.03 5-speed manual 928 all markets 1978, 1979, 1980,
G28.05 5-speed manual 928, 928 S 1980, 1981,
G28.05 5-speed manual 928 S 1982,
G28.07 5-speed manual 928 S Euro 1983, 1984,
G28.08 5-speed manual 928 S America 1983, 1984,
G28.09 5-speed manual 928 all markets 1982,
G28.10 5-speed manual 928 S Euro 1985, 1986,
G28.10 5-speed manual 928 S Euro CAT 1986,
G28.11 5-speed manual 928 S America, Euro CAT 1985,
G28.11 5-speed manual 928 S America 1986,
G28.12 5-speed manual 928 S4 Euro 1987, 1988,
G28.12 5-speed manual 928 S4 all markets 1989,
G28.13 5-speed manual 928 S4 America 1987, 1988,
G28.55 5-speed manual 928 S4 M637 Club Sport 1988, 1989,
G28.55 5-speed manual 928 GT 1989, 1990, 1991,
G28.57 5-speed manual 928 GTS 1992, 1993, 1994, 1995,