2017 Cascadia DD15 DEF Doser mounting gasket orientation

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by bhcv, Feb 3, 2023.

  1. bhcv

    bhcv Bobtail Member

    Aug 24, 2011
    Portland Oregon
    The old gasket didn't have the 4 little protrusions the new gasket has. Do the protrusions face the Doser or the one box?

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