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. NOTE: This turbocharger package also comes with the gaskets. Fits the following: Part Number: 4038901 Interchangeable Number: 4038903, 4038903H OEM Number: 4955211, 495521100 Turbo Model: HX55M, HX55M-B98K68RM/C86L90NHA20DF Brand: Holset Engine: QSM11, M11 Engine Manufacturer: Cummins Displacement: 11.0L, 11000 ccm Fuel: Diesel CPL Number: 8590 Angle α (Compressor Housing): 270° Angle β (Turbine Housing): 90° Back Plate: 3528096 (1153055300, 1800016024) Bearing Housing: 4039054 (3529849)(Oil Cooled) CHRA: 4031409 (4031409H) Compressor Wheel: 3593686 (Ind. 67 mm, Exd. 97.68 mm, Trim 6.3, 7+7 Blades, Deep Super Back)(1153055401, 1200016360) Heat Shield: 3533038 (3529846)(1153055340, 2030016003) Repair Kit: 3580762 (3575181)(358076200, 357518100)(1153055750, 5000020023) Turbine Housing (Water Cooled): 4044505 Turbine Wheel: 3535983 (Ind. 86 mm, Exd. 76.98 mm, Trim 12.85, 12 Blades)(1153055436, 1100016122B) Application: 2005- Mercruiser Marine with Cummins M11 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.