{"nhtsa_id":10036725,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2011-04-11","date":"2012-01-01","document_id":"SB-49-7","mfr_campaign":null,"replaces":"SB-49-7-B","component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM","mfr_system":null,"summary":"WESTERN STAR: EPA07 EXHAUST BELLOWS REPLACEMENT. IF A FAILED EXHAUST BELLOWS ON AN EPA07 ENGINE INSTALLATION, REPLACE IT WITH A NEW STYLE BELLOWS, AND TWO NEW MATCHING CLAMPS. NO MODEL YEARS LISTED. *PE UPDATED ON 6/14/2011. *KB UPDATED 4/20/12. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10036725","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"WESTERN STAR","model":"CONSTELLATION","year_from":1995,"year_to":1999,"match":null,"vehicle_ids":[]},{"make":"WESTERN STAR","model":"HERITAGE","year_from":1995,"year_to":1997,"match":null,"vehicle_ids":[]},{"make":"WESTERN STAR","model":"HERITAGE","year_from":1999,"year_to":1999,"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":[]}