{"nhtsa_id":600514,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1998-05-19","date":"1998-01-23","document_id":"9803","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR","mfr_system":null,"summary":"SUBJECT ON DELCO ALTERNATORS. *YC","document":null,"url":"https://open.wenmarpro.com/bulletins/600514","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"alternator","name":"Alternator","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"WESTERN STAR","model":"WESTERN STAR","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":[]}