HX40W HX40 6CTAA FOR CUMMINS DODGE RAM TURBO DIESEL T4 EXHAUST FLANGEVMS Racing HX40W turbocharger to upgrade from the factory installed HX35W turbocharger found on most 1994 2002 Dodge Ram with the 5. 9L Cummins engine. You can replace the turbochargers on the older 89 03 engines, but modifications will need to be done to the intake side and not just the exhaust side. This HX40W comes with the high flow T4 flange and 4" exhaust. So you will need an adapter from the factory T3 flange to the T4 flange and you will need