BRAND NEW GENUINE HOLSET TURBOCHARGER This is a BRAND NEW GENUINE HOLSET TURBOCHARGER. Exact same part sold at the dealership. This is an exact, direct fit OEM replacement turbo. Fits the following: Part Number: 4040568 Interchangeable Number: 4040569, 404056900, 4040569H OEM Number: 4955280, 4955280NX, 4955280RX Turbo Model: HE221W Brand: Holset Engine: QSB, QSB Tier 3, QSB4 Engine Manufacturer: Cummins Displacement: 4.5L, 4500 ccm Fuel: Diesel Angle α (Compressor Housing): 190° Angle β (Turbine Housing): 5° Back Plate: 49135-00044 (Super Back)(1401635399, 1800016016) Bearing Housing: (Oil Cooled)(1154221450, 1900011200D) CHRA: 4043584 (4043584H, 49189-09740)(1154221900, 1000020149) Compressor Cover: N/A Compressor Wheel: (Ind. 43.35 mm, Exd. 60.85 mm, Trim 4.16, 6+6 Blades, Super Back)(1153025751, 1200016478) Gasket (Oil Outlet): 311496 (210021, 148062, 311496, 3519807, 413671-0000, 409037-0000, 210021-0000) Gasket Kit: 4032448 (2090010086) Heat Shield: 49183-19300 (1401494347, 2030016085) Repair Kit: 3575169 (1153025751, 5000050007) Turbine Housing: N/A Turbine Wheel: (Ind. 64.69 mm, Exd. 52.12 mm, Trim 8.4, 11 Blades)(1401404444, 1100016417B) Application: 2004-12 Truck with Cummins QSB Tier 3 Engine 2007-12 Komatsu Front End Loader with Cummins QSB4 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.