{"nhtsa_id":10168127,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-11-21","date":"2019-11-21","document_id":"CALWS15-001","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY; ENGINE","mfr_system":null,"summary":"Customer Advisory Letter for Allison flex plate mounting bolts. The incorrect flex plate mounting bolts were installed for certain vehicles.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10168127-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10168127-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10168127","components":[{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"WESTERN STAR","model":"4700","year_from":2020,"year_to":2020,"match":"exact","vehicle_ids":["2020_western-star_4700"]},{"make":"WESTERN STAR","model":"4900","year_from":2020,"year_to":2020,"match":"exact","vehicle_ids":["2020_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":[]}