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    • Cummins Marine Forum Topics
    • Aftercooler drain leak

      This topic has 7 replies, has 3 voices, and was last updated byTerry Kerr 2 years ago

      July 26, 2021 at 8:58 pm I have twin 2008 Cummins 380 QSB’s. The port engine aftercooler drain is now leaking air and air only. I have never seen any signs of water under either side and this is a new development. I have serviced them per Tony’s recommendations and they were done last year. Both engines are freshwater flushed and I haven’t noticed any performance issues. Boost is the same on both and the only difference is the port uses about 7% more …

      Started by: russkarns in: Cummins Marine Engines

      7 Replies
      August 7, 2021 at 8:55 am I’ll order the $40 ones. Appreciate the response.

      Last Post by: Terry Kerr posted: 2 years ago

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