BD Exhaust Manifold CR Cummins 24V 2003-2007BD Exhaust Manifold CR Cummins 24V 2003 2007 This BD T3 Exhaust Manifold is the perfect replacement for Cummins 24V engines from 2003 2007 5. 9L. Made from high silicon ductile iron and precision slip joints, it can withstand extreme temperatures and vibration, while offering optimal internal geometry. Its design ensures manifold longevity and reliable performance.