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12g1288 Gearbox
https://ausmini.com/forums/viewtopic.php?f=2&t=101893
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Author:  Astroblue [ Wed Jun 14, 2023 7:40 am ]
Post subject:  12g1288 Gearbox

Morning,
Did the Australian Morris Mini Cooper S Mark 1, ever leave the factory with a 12g1288 gearbox installed?
Thanks

Author:  timmy201 [ Wed Jun 14, 2023 8:33 am ]
Post subject:  Re: 12g1288 Gearbox

12G1288 is the part number for a 1275 non-S crankshaft

22A1288 gearbox was used on the Cooper S (and other engines). To confirm it’s an S box it would have a “12FA” number stamped on the front in the range in the link below

viewtopic.php?f=2&t=99897

Author:  Astroblue [ Wed Jun 14, 2023 9:17 am ]
Post subject:  Re: 12g1288 Gearbox

Thankyou for the valuable info and correction on the typo of the gearbox numbers.

Author:  gtogreen1969 [ Wed Jun 14, 2023 9:44 am ]
Post subject:  Re: 12g1288 Gearbox

22A1288 started to appear in the 9FSAY 48000s. Serial numbers were in the 12FA 17000s. It wasn't an exact changeover so there will be engines in the 9FSAY 49000s with the earlier 22G333 box.

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