{"nhtsa_id":10222241,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-10-04","date":"2022-09-28","document_id":"SS731-WST2022","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT","mfr_system":null,"summary":"Service Solution for Calendar Year 2022 Espar D2 and D4 Heater Shortages. Eberspacher has experienced ongoing shortages of the microprocessor that is used in the controller board for many different Espar heaters, including the D2 and D4 Airtronic heaters used in 49X.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10222241-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10222241-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10222241","components":[{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"WESTERN STAR","model":"49X","year_from":2023,"year_to":2023,"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":[]}