{"nhtsa_id":10086024,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-12-13","date":"2015-07-21","document_id":"TSB150089-060415","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM","mfr_system":null,"summary":"THIS TECHNICAL SERVICE BULLETIN INTRODUCES A REVISED BACKFLOW CONNECTOR FOR THE BOSCH AFTERTREATMENT DEF (DIESEL EXHAUST FLUID) DOSING UNIT. IN SOME CASES, THE AFTERTREATMENT DEF DOSING LINES ARE NOT BEING FULLY PURGED DURING THE PURGE CYCLE, WHICH CAN RESULT IN INTERNAL CRACKING OF THE AFTERTREATMENT DEF DOSING UNIT AND LEAKAGE OF DEF.","document":null,"url":"https://open.wenmarpro.com/bulletins/10086024","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"ISB6.7","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CUMMINS","model":"ISC8.3","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CUMMINS","model":"ISL9","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CUMMINS","model":"ISX11.9","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CUMMINS","model":"ISX12","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CUMMINS","model":"ISX15","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":[]}