{"nhtsa_id":11033102,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-06-01","date":"2026-05-28","document_id":"TSB-26-007-WST","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"Revised Technical Service Bulletin for DT12 OVX Transmission Refresh","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11033102-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11033102-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11033102","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"WESTERN STAR","model":"47X","year_from":2021,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"WESTERN STAR","model":"49X","year_from":2020,"year_to":2025,"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":[]}