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  1. O

    CP4 Changes - to large dimple symmetrical cam version

    One more thing my bought new 2018 ram 2500 engine was alot louder than my new one is, i could hear it rumbling when i started from inside house.... this new truck..i need to listen to see if its running. Thanks i appreciate your reply.
  2. O

    CP4 Changes - to large dimple symmetrical cam version

    Oh and my 3500 dually with build date 9/2/20 has the 1 dimple pump and engine and pump is really quiet.
  3. O

    CP4 Changes - to large dimple symmetrical cam version

    If they just started as of 9/1/20 with the updated 1 dimple pump..wonder how that pump got installed on 7/22/20 build date? Hmmmm lol
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