{"nhtsa_id":600139,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1998-04-27","date":"1998-02-24","document_id":"PM105","mfr_campaign":null,"replaces":null,"component":"STRUCTURE","mfr_system":null,"summary":"AIR SPRING GUARD INSTALLATION. *YC","document":null,"url":"https://open.wenmarpro.com/bulletins/600139","components":[{"id":"structure-body","name":"Body and frame","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"HARLEY-DAVIDSON","model":"HARLEY DAVIDSON","year_from":1997,"year_to":1998,"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":[]}