{"nhtsa_id":10054571,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2014-02-05","date":"2013-10-11","document_id":"TIB-43-033","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM","mfr_system":null,"summary":"KENWORTH: ON SOME VEHICLES THE EXHAUST HANGER BRACKETS CAN FATIGUE AND CRACK WHERE THEY ARE ATTACHED TO THE FRAME. USE THE ATTACHED PROCEDURE TO REPLACE THE BRACKETS WITH SLOTS TO BRACKETS HAVE ONLY HOLES. MODELS INCLUDE T680 CHASSIS MANUFACTURED BEFORE 8/12/2013 *JS","document":null,"url":"https://open.wenmarpro.com/bulletins/10054571","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"KENWORTH","model":"KENWORTH","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":[]}