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Thread: Spark plug used in 1965

  1. #1

    Spark plug used in 1965

    Would Bosch WR5DC plugs have been used in 1965? Does anyone know when they were launched?

  2. #2
    member #1515
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    Bosch switched numbering sometime in the 80's I think. for instance the S models used W265 P21 (platinum tip)
    David

    '73 S Targa #0830 2.7 MFI rebuilt to RS specs

  3. #3
    Senior Member
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    Quote Originally Posted by Martin skeet View Post
    Would Bosch WR5DC plugs have been used in 1965? Does anyone know when they were launched?
    If this is related to your travel kit contents this at post #15 might be close enough for government work, as it seems these kits were often put together or tweaked to what car customer who wanted it had. Hard to imagine they stocked in dealer or even importer one kit in each configuration given the nature of the market, unless of course the 1965 911 experts know better?

    https://www.early911sregistry.org/fo...-by-year/page2

  4. #4
    Senior Member 68S_SK2's Avatar
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    You should look for the Technische Informationen bulletin M 3/67, unfortunately I only have the later one M 6/69 which superceded M 3/67:Name:  20230801_142117.jpg
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    Claudius

  5. #5
    Thanks all. I’ll get hunting,

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