View 6 Photos View 0 Videos Cummins ISL Exhaust Manifold $110 USD (GOOD USED) OEM Cummins ISL Diesel Engine Exhaust Manifold, for sale!!!!, P/N: 3937478, 3988362, Stock #: I1021 For more information about this listing, shipping, technical questions... ConditionUsedPart Number3937478Stock NumberI1021 MLS Number10250350CategoryExhaust Manifolds Last Updated7/1/2020 LocationHialeah, FL, US Sold ByJJ Rebuilders Inc. (844) 385-___ SHOWNUMBERCall Seller Email Seller Save More Info