{"nhtsa_id":10043184,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2012-02-29","date":"2011-12-01","document_id":"SF-454AB","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:COOLING SYSTEM; ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"DAIMLER TRUCK: CERTAIN TRUCKS ARE BEING MODIFIED DUE TO AIR CLEANER INLET CAPS INGESTING UNDER HOOD AIR CAUSING THE TURBO INLET TEMPERATURES TO BE TOO HIGH. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10043184","components":[{"id":"engine","name":"Engine","parent":null},{"id":"cooling-system","name":"Cooling system","parent":"engine"}],"codes":[],"topics":[],"vehicles":[{"make":"WESTERN STAR","model":"4900","year_from":2009,"year_to":2010,"match":"exact","vehicle_ids":["2009_western-star_4900","2010_western-star_4900"]}],"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":[]}