{"nhtsa_id":10086595,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-12-19","date":"2016-03-18","document_id":"C1744B","mfr_campaign":null,"replaces":null,"component":"ENGINE; EQUIPMENT","mfr_system":null,"summary":"THIS IN-SHOP CAMPAIGN AUTHORIZES THE REMOVAL AND REPLACEMENT OF COOLANT LEVEL SENSORS ON CERTAIN ENGINES IN TRANSIT BUS APPLICATIONS WHILE THE UNIT IS IN FOR ANY MAINTENANCE OR REPAIR. CERTAIN COOLANT LEVEL SENSORS MAY EXPERIENCE PIN CORROSION AS THE RESULT OF INADEQUATE SEALING PERFORMANCE OF THE ELECTRICAL CONNECTOR AND THIS ACTION REPLACES THE ELECTRICAL CONNECTOR WITH A JUMPER HARNESS TO PROVIDE IMPROVED PROTECTION AGAINST MOISTER INTRUSION.","document":null,"url":"https://open.wenmarpro.com/bulletins/10086595","components":[{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"ISL9","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":[]}