BRAND NEW GENUINE HOLSET TURBOCHARGER This is a BRAND NEW GENUINE HOLSET TURBOCHARGER. This is an exact, direct fit OEM replacement turbo. NOTE: This turbocharger package also comes with the gaskets. 53.7 mm, Exd. 77.98 mm, 7+7 Blades, Super Back Electronic Actuator: 4031337 (3598564, 403133700, 403133700H, 403133700HX, 4031337H, 4031337HX, 4031337NX, 4037832, 4039360, 4039360H) Gasket Kit: 3545575 (1900100057) Repair Kit: 4027309 (1152301750) Turbine Housing A/R: VGT Turbine Wheel: Ind. 59.15 mm, Exd. 66.5 mm, 11 Blades Application: 2004-09 Truck with Cummins ISB Engine Bus with Cummins ISB Engine. Important Please use the above information to determine if the part(s) in this listing fit your vehicle. The most reliable way to make sure the model of turbo is finding the part number from the nameplate of your old turbo. We cannot be held responsible for turnaround times in these instances. The turbocharger has to be rebuilt to function. We will arrange to get you a replacement part if by mistake the wrong part is sent. Transit time does fluctuate depending on your location. Communication is very important to us and we will try our best to assist all of our customers. Questions are answered in the order they arrive and will be answered as quickly as possible.