{"nhtsa_id":10042784,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2012-01-11","date":"2011-11-08","document_id":"TIB-43-23","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM","mfr_system":null,"summary":"KENWORTH: INFORMATION REGARDING REAR NOX SENSOR REPAIRS SHOULD INCLUDE SYSTEM UPDATES FOR CHASSIS OPERATING IN CONDITIONS WHICH RESULT IN MOISTURE RELATED SENSOR FAILURES WITH IMPROVED MOISTURE PROTECTION EXHAUST DESIGN FOR REAR NOX SENSOR. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10042784","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"KENWORTH","model":"C500","year_from":2009,"year_to":2011,"match":null,"vehicle_ids":[]},{"make":"KENWORTH","model":"T660","year_from":2009,"year_to":2011,"match":null,"vehicle_ids":[]},{"make":"KENWORTH","model":"T800","year_from":2009,"year_to":2011,"match":null,"vehicle_ids":[]},{"make":"KENWORTH","model":"W900","year_from":2009,"year_to":2011,"match":null,"vehicle_ids":[]},{"make":"KENWORTH","model":"W900S","year_from":2010,"year_to":2010,"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":[]}