Cummins Marine Diesel Repower Specialists › Forums › Cummins Marine Engines › Bang for buck. 5.9 vs 6.7

  • Creator
    Topic
  • May 6, 2023 at 7:48 pm #147924

    Richard
    Participant
    Country: New Zealand

    Hi. <br />I want to buy a stand by engine to avoid serious down time if my current QSB 5.9 330hp should fall off its perch . <br /> Are the QSB 6.7 355hp engines generally as reliable as the 5.9 ?<br /><br /><br />

  • Creator
    Topic
Viewing 2 replies - 1 through 2 (of 2 total)
  • Author
    Replies
  • May 7, 2023 at 6:18 pm #147958

    Richard
    Participant
    Country: New Zealand

    Thanks

    Thanks for your time and valued opinion.

    May 7, 2023 at 10:23 am #147942

    Tony Athens
    Moderator
    Vessel Name: Local Banks
    Engines: QSB 6.7 550 HP
    Location: Oxnard, CA
    Country: USA

    IMO, more reliable due to improved technology and a superior common rail fuel system  Only look at the QSB 6.7 SL version .. Available from 280 BHP (2300RPM)  to 417 BHP(3000 RPM)

  • Author
    Replies
Viewing 2 replies - 1 through 2 (of 2 total)

You must be logged in to reply to this topic.