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Thread: Sr20 bearing sizing

  1. #1
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    Sr20 bearing sizing

    I'm doing a freshen up my sr20 and need new bearings.

    Block number 12121
    Crank 22101

    What do I need to do with these numbers ?

    There is also 1111 on the crank .

  2. #2
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    On a CA you add the numbers together so it would be 34222. Those relate to a colour as well if you order them from Nissan.

    On a CA the colours would be yellow, blue, green. You would have to check for an SR though. The four digit number is the con rod bearing grade number.

    When ordering remember your middle bearing is different to the others, or at least it is on a CA.

    I know you have an SR but I hope this helps.

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