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Fuel Tank Size

Discussion in 'Chevy Suburban Forum (GMC Yukon XL)' started by hoosyurdaddy, Jul 18, 2013.

  1. hoosyurdaddy

    hoosyurdaddy Rockstar

    Trying to order a new fuel pump for the Burb but I cannot determine the fuel tank size using the RPO codes.Any advice?:neutral:
  2. K15 Blazer Guy

    K15 Blazer Guy Member 2 Years 100 Posts

    LMC has a section in their catalog for tanks.
    look up your year and trim
    1 person likes this.
  3. ChromeSilver02

    ChromeSilver02 Rockstar 3 Years 500 Posts

    Also if you have your owner's manual it should be in there.
  4. dsfloyd

    dsfloyd Epic Member 5+ Years ROTM Winner Gold Member 1000 Posts

    call the dealership with vin# and they should be able to tell you.
  5. hoosyurdaddy

    hoosyurdaddy Rockstar

    Thanks,none of the RPO codes match up with the tank sizes. The choices when ordering a fuel pump for a 91 v2500 are 31 gal. and 40 gal. I would think the default on a heavy duty rig would be the 40 gal but I want to be sure. Owners manual only mentions that there are two different sizes. Did confirm I had the 4L80E tranny. That made my day.

    - - - Updated - - -

    Used the measurements from LMC. 35x28x13. Its a 40 gal. tank.Thanks for your help.:great:
  6. RayVoy

    RayVoy Well-Known Member 2 Years 1000 Posts

    I suspect the 31 gal tank is "standard" and the 40 gal is an optional tank. If so, there should be an RPO code on the glove box sticker (if the 40 gal was installed at the factory). The RPO for a 40 gal tank is: NE2

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