Cummins Marine Diesel Repower Specialists Forums Cummins Marine Engines QSC 8.3 Engine Block Heaters – Voltage?

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  • #124425

    JTJG
    Participant

    Hello!  I have two QSC 8.3 engines and am seeing repeated failures of the block heaters.  Tehy are wired to the 240 Volt side of my panel on my boat.  If I look up the part numbers online, the images all show 120 Volt plugs.  I wonder if the boat OEM made a mistake…does anyone know (of can point me to the spec) the voltage spec on the Block Heaters?  

    3905114 – Cable<br />4935058 – Heater, Engine

    THANK YOU!

     

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  • #124503

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

    The coolant block immrsion style heaters Cummins supplies are (IMO) not safe and unreliable..  Buy stick-on  OIL pan heaters–120V  250W for each engine . Run them 24-7 with breaker to turm them off when not needed

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