Diesel technicians agree that OEM parts cannot be surpassed by the aftermarket or rebuilders as the original OEM engine parts were engineered and built to have an extremely long service life. Unfortunately as time passes on the only heavy engine parts alternatives become rebuilds, often from core exchanges that have met their service life maximum or have broken down. OSMI Parts has great news as we have recently acquired a limited supply of new and original Cummins heads that are still in the factory preserving grease as shown. These new heads are the original replacements and have not been rebuilt. When it’s time to rebuild or restore your N14 Celect, why settle for a rebuild of unknown component quality cylinder heads when you can have the new Cummins originals designed for your engine in hand and ready to install? These were received directly from our OEM supplier and are authentic. Contact OSMI Parts for more details about these new original cylinder heads. Fitment suggestions: 855 CID 6 Cylinder Bore: 5.500 Stroke: 6.000. PLEASE NOTE: While OSMI Parts attempts to provide accurate fitment suggestions and part number cross references, this information has no expressed or implied warranties and our customers are encouraged to research and determine which part # is correct for their exact machine. OSMI Parts will not be liable for incorrect or inaccurate fitment information.