Cummins 3949530 Turbocharger Mounting Gasket

The Cummins 3949530 is a turbocharger mounting gasket designed for T3 flange turbochargers on B-series engines. It seals the connection between the turbocharger turbine outlet and the exhaust manifold. Manufactured from high-temperature resistant steel core material to withstand extreme thermal cycling and exhaust pressure. Direct replacement for OEM part number 3949530. Compatible with Holset HE341 and HE351 style turbochargers commonly found on 5.9L ISB applications. Engineered for precise fitment on Cummins 4B 3.9L, 6B 5.9L, ISB 5.9L, ISB 6.7L, and QSB 6.7 engine platforms. Used across heavy-duty truck, construction machinery, and industrial power unit applications. Cross-references include aftermarket equivalents from Sealed Power, Mahle, AJUSA, Elring, and KMP brands.