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Rear Brake Drum AYA4020
https://www.ausmini.com/forums/viewtopic.php?f=2&t=89155
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Author:  gtogreen1969 [ Mon Apr 13, 2015 8:57 pm ]
Post subject:  Rear Brake Drum AYA4020

Does anyone recognise the part number AYA4020 Mowog brake drum.
It measures 180mm across so it appears to be the same as the std 21A22 drum.

Author:  Goldbrocade_62 [ Mon Apr 13, 2015 9:02 pm ]
Post subject:  Re: Rear Brake Drum AYA4020

MG midget maybe??

Author:  Morris 1100 [ Mon Apr 13, 2015 9:03 pm ]
Post subject:  Re: Rear Brake Drum AYA4020

AYA4020 is an Australian part number and is listed in some Australian Mini parts books.
21A22 is a UK number.

This probably means they were getting brake drums made locally.

Author:  gtogreen1969 [ Mon Apr 13, 2015 9:12 pm ]
Post subject:  Re: Rear Brake Drum AYA4020

Morris 1100 wrote:
AYA4020 is an Australian part number and is listed in some Australian Mini parts books.
21A22 is a UK number.

This probably means they were getting brake drums made locally.


Thanks, That's what I needed to know. All good - I will put it back on.

Author:  winabbey [ Mon Apr 13, 2015 9:36 pm ]
Post subject:  Re: Rear Brake Drum AYA4020

As mentioned above, it's the Australian produced version of the standard Mini (i.e. non-Cooper S) brake drum. First released into production in May 1963, so they must've used the UK part until then. You may find the casting date code on there too.

Author:  drmini in aust [ Mon Apr 13, 2015 10:10 pm ]
Post subject:  Re: Rear Brake Drum AYA4020

AYA4020 listed in Mini K book PUB1038 (final).

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