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  View original topic: Bosch coil TK6A3
wimkever Tue Jan 15, 2019 2:47 pm

Some time ago I purchased a Bosch coil type TK6A3.
I read on some sites that this coil was used in early splits and Porsches 356.
Here are some pic's :



On the bakelite part the type number is stamped. However on the metal part there's no stamping. In other pictures on the net I see this :



So, what do I have? Is my coil a fake?

56samba Wed Jan 16, 2019 10:15 am

There were several versions available, that explains why your coil looks different.
Don't want to disappoint you,but they were never factory equipped on VW's.

John cilia Sat Feb 23, 2019 2:11 pm

Was this coil used in early Ovals with 25 hp motor in 1953 ?

vwovalguy Mon Feb 25, 2019 12:53 am

Yes!

John cilia wrote: Was this coil used in early Ovals with 25 hp motor in 1953 ?

mikeandkirsti Mon Feb 25, 2019 6:14 am

vwovalguy wrote: Yes!

John cilia wrote: Was this coil used in early Ovals with 25 hp motor in 1953 ?

In fact it is correct for Splits starting from about May 1951 onward. The star coil was NOT used on later cars, a mistake often made by restorers.

wimkever Mon Feb 25, 2019 9:19 am

mikeandkirsti wrote: vwovalguy wrote: Yes!

John cilia wrote: Was this coil used in early Ovals with 25 hp motor in 1953 ?
In fact it is correct for Splits starting from about May 1951 onward. The star coil was NOT used on later cars, a mistake often made by restorers.

56samba wrote: There were several versions available, that explains why your coil looks different.
Don't want to disappoint you,but they were never factory equipped on VW's.

Who has the right answer?

Suboval Mon Feb 25, 2019 11:22 am


https://www.thesamba.com/vw/forum/viewtopic.php?p=8227968&highlight=tk6a3#8227968

Some good information can be found in the Split-Window Beetle FAQ at the top on the left side in the Announcements and Sticky Topics section.
https://www.thesamba.com/vw/forum/viewtopic.php?t=132919

Frederik Tue Apr 02, 2019 8:14 am

See of you can find a stamped date code om your coil (Like the "11J" in the other coil).

wimkever wrote: Some time ago I purchased a Bosch coil type TK6A3.
I read on some sites that this coil was used in early splits and Porsches 356.
Here are some pic's :



On the bakelite part the type number is stamped. However on the metal part there's no stamping. In other pictures on the net I see this :



So, what do I have? Is my coil a fake?

James Davies Wed Apr 03, 2019 12:06 pm

You have an early version of this coil. Probably 1951. You should find the date stamp on the cad-plated coil bracket. I suspect it will be 6G (June 1951) or something close. The 1952+ versions of this coil had the model type (TK6A3) embossed on the top of the coil instead of on the bakelite. The date stamp was moved to the top as well. In 1954 these coils got a big yellow Bosch sticker too.



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