{"nhtsa_id":610470,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2000-05-02","date":"1999-10-22","document_id":"99WS001","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE","mfr_system":null,"summary":"A CONDITION MAY EXIST WHERE THE DIPSTICK FOR THE 48FX WITH CUMMINS ISM/M11 ENGINE IS DIFFICULT TO ACCESS. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/610470","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"WESTERN STAR","model":"48FX","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"WESTERN STAR","model":"WESTERN STAR","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":[]}