Description

This exhaust manifold is engineered for Cummins ISM engines and replaces part number ISM.EXH. Designed to optimize exhaust gas flow to the turbocharger, it reduces backpressure and increases combustion efficiency. Manufactured from heat-resistant, high-strength cast iron, this manifold offers a precise OEM-style fit, excellent durability under high temperatures, and long-lasting reliability in commercial and industrial diesel applications. Application: Center Section Part: 3104237 Equivalent to 3090915 End Sections Part: 4003994 Equivalent to 3,067,406 Key Features OEM replacement for Cummins ISM.EXH Fits Cummins ISM engine platforms Improves turbo response and reduces exhaust restriction High-temperature cast iron construction for strength and durability Precision-machined for leak-free performance and easy installation Compatibility Cummins ISM Engines OEM Replacement Part #: ISM.EXH