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Thread: Bosch numbers for horns

  1. #21
    ^^^^ great data point. Hoping to see more of your car! Welcome after all these years!!
    Peter Kane

    '72 911S Targa
    Message Board Co-Moderator - Early 911S Registry #100

  2. #22
    Senior Member 68S_SK2's Avatar
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    Here the information about the snail horns:

    Snail horn 400Hz Porsche 90163511202 left side assembly, Bosch 0321023002 beginning VIN 305101, 354001, 458101 until end of model year 1968 (SWB).

    Snail horn 500Hz Porsche 90163511302 right side assembly, Bosch 0321023003 beginning VIN 305101 until end of model year 1968 (SWB) for 911S, 911L only.

    Swiss cars had the snail horn type until the end of MY1973 as far as I know.

    The snail rotation is different in both types to enable the assembly.

    Model year 1969 and 1970: Both horns were standard for all 911.
    Here 2 pictures for MY 1969 and 1970 with different mounting brackets and horn positioning in comparison to the SWB cars.
    Name:  Snail left 2x.jpg
Views: 141
Size:  85.7 KB
    Name:  Snail right 2.jpg
Views: 144
Size:  66.3 KB

    Hope it helps.

    BR
    Claudius
    Last edited by 68S_SK2; 11-15-2023 at 08:17 AM. Reason: add. information

  3. #23
    Senior Member ejboyd5's Avatar
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    Claudius: Just noticed that you used my photos of my 12/68 Karmann build car to illustrate your post. You're welcome. First two pictures are right side; second two are left side.
    Attached Images Attached Images     

  4. #24
    Senior Member 68S_SK2's Avatar
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    Thumbs up

    I hope it is acceptable for you. I found them in my picture database, I think you posted the pictures here or elsewhere - I can't remember.
    Thank you.
    Claudius
    Last edited by Chuck Miller; 05-05-2024 at 10:43 AM.

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