{"nhtsa_id":11028075,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-02-03","date":"2026-01-30","document_id":"TSB-26-006-WST","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"Technical Service Bulletin for DT12 Excessive Wear","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11028075-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11028075-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11028075","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"WESTERN STAR","model":"47X","year_from":2022,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"WESTERN STAR","model":"49X","year_from":2021,"year_to":2026,"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":[]}