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. 50.06 mm, Exd. 56.99 mm, 12 Blades Application: 1996-11 Marine with Cummins 4BTA 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.