{"nhtsa_id":619259,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-05-21","date":"1999-03-01","document_id":"SF166A","mfr_campaign":null,"replaces":null,"component":"SERVICE BRAKES, AIR:SUPPLY:HOSES, LINES/PIPING, AND FITTINGS","mfr_system":null,"summary":"FIELD SERVICE MODIFICATION TO INSTALL THE PROPER PRESSURE CHECK VALVE ON VEHICLES MANUFACTURED BETWEEN MARCH 12, 1998 AND SEPTEMBER 11, 1998 WITH WABCO AIR DRYERS. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/619259","components":[{"id":"brakes","name":"Brakes","parent":null},{"id":"brake-hose-line","name":"Brake hoses and lines","parent":"brakes"}],"codes":[],"topics":[],"vehicles":[{"make":"STERLING","model":"STERLING","year_from":null,"year_to":null,"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":[]}