{"nhtsa_id":10046819,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2012-10-31","date":"2012-08-07","document_id":"SB-12-TS-13","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:DIESEL; ENGINE","mfr_system":null,"summary":"DETROIT: DUE TO AIR COMPRESSOR HEAD DESIGN CHANGE, OF SERIES 60 BA-921, TO INCORPORATE 1/4\" NPT THREAD SAFETY VALVE/UNLOADER VALVE, THE 1/4\" VALVE HAS PRESSURE SETTING OF 200 PSI AND NOT 250 PSI AND IS NOT COMPATIBLE WITH OLDER M16. NO MODEL YEARS LISTED. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10046819","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"DETROIT","model":"SERIES 60","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":[]}