{"nhtsa_id":10178494,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-08-17","date":"2020-07-22","document_id":"CMI-X6G5K-08","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"This is a representative communication between the Cummins producing plant to affected vehicle manufacturers regarding the potential issue of indistinguishable characters in the Engine Serial Number stamped on on the engines. The engine plant pursued corrective action to with affected OEMs at their facitilies.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10178494-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10178494-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10178494","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"B6.7","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CUMMINS","model":"L9","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CUMMINS","model":"L9N","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}