{"nhtsa_id":10243513,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-10-04","date":"2023-09-21","document_id":"TSB180032","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"This Technical Service Bulletin describes the verification and resolution of issue of fault codes FCs 125, 1921, 1922, 1866, 3361, 3382, 3389, and 4729 causing Air Compressor Air Leak Noise, black smoke, high exhaust temperature, low power. This is an update to the previously submitted communication.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10243513-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10243513-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10243513","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":[]}],"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":[]}