Proper battery size for 1st gen Dodge D350 cummins

Discussion in 'Tow Rigs and Trailers' started by jcramsey, Feb 28, 2019.

  1. jcramsey

    jcramsey Well-Known Member

    Joined:
    Jul 22, 2009
    Location:
    Charleston, SC
    Just bought an 89 D350 and the seller had a tiny 600ish cca battery in it out of his boat. It won't hold a charge and even when charged up, it will barely turn the motor over. What size battery should I be looking for?
     
  2. skyhighZJ

    skyhighZJ Thanks for your taxes

    Joined:
    May 31, 2012
    Location:
    Fort Polk, La.
    IIRC the FSM calls for a #26 but they changed requirements to a Group 31. In late ‘90 or ‘91. My 1st and 2nd gen both had 31’s in them with no issues.
     
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  3. Ron

    Ron Dum Spiro Spero Moderator

    Joined:
    Apr 16, 2005
    Location:
    Sharon, SC
    I'd put a 4D if you could fit it....but otherwise yeah go with a 31.
     
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  4. rodney eppes

    rodney eppes Well-Known Member

    Joined:
    Feb 3, 2010
    Location:
    Mt.Holly NC 28120
    Every diesel pick up I ever saw, had dual batteries, & each being 900 - 1000 CCA.
     
  5. Junkyard Dog

    Junkyard Dog Well-Known Member

    Joined:
    Mar 21, 2005
    Location:
    Sanford, NC
    My 91 had a group 31
     
  6. jcramsey

    jcramsey Well-Known Member

    Joined:
    Jul 22, 2009
    Location:
    Charleston, SC
    Thanks fellas
     
  7. CLRracer

    CLRracer Mopar Nut

    Joined:
    Mar 20, 2005
    Location:
    Archer Lodge
    No first generation Ram came with dual batteries, but you can put two of them in the battery tray sideways. I have two group 31s in mine.

    Duane
     
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