11 0 2004 Cummins ISX 450ST Intake Manifold for a Peterbilt 378 Newly Listed $249.95 USD Genuine Cummins Exhaust Gas Recirculation (EGR) Mixer Tube, Matieral: Aluminum, Casting # 3682524 ConditionUsedFits To Make(s)PETERBILTFits To Model(s)378Stock Number16025 MLS Number14021899CategoryIntake Manifolds Last Updated12/8/2025 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info