{"nhtsa_id":10083167,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-10-20","date":"2016-07-07","document_id":"FSB 252-033","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE","mfr_system":null,"summary":"EXHAUST HEAT SHIELD, INSTALLATION, MACK CHU AND CXU MODELS EQUIPPED WITH SLEEPER CAB AND WITHOUT SIDE AIR DEFLECTORS, BUILT BETWEEN MAY 5, 2014 AND MAY 16, 2016, DID NOT COME WITH LOWER EXHAUST ELBOW HEAT SHIELDS. IF THESE VEHICLES HAVE OR ARE LATER EQUIPPED WITH REAR PTO, THE OPERATOR MAY BE EXPOSED TO HIGH TEMPERATURE EXHAUST COMPONENTS.","document":null,"url":"https://open.wenmarpro.com/bulletins/10083167","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"CHU","year_from":2015,"year_to":2017,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"CXU","year_from":2015,"year_to":2017,"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":[]}