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pre unit primary covers

Discussion in 'Triumph (Classic)' started by steko, Oct 9, 2019.

  1. steko


    Oct 25, 2018
    Good morning,

    What is the difference between pre unit inner primary cover 1231 (outer 1232/1237) and 1600/1603 (outer 1601). Are ther differences in overall length and height and depth ? Are they interchangeable?

    Many thanks in advance !

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