{"nhtsa_id":10199834,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-08-04","date":"2021-07-12","document_id":"FDM-SVC-001","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT; ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"This bulletin provides instructions to update the cab heater plumbing ball valve mount. The new ball valve mount design was developed after receiving reports the ball valve mounting screws were breaking off in the ball valve body. The new design uses a U-bolt to secure the ball valve to a new mounting plate.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10199834-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10199834-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10199834","components":[{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"OSHKOSH","model":"S SERIES","year_from":null,"year_to":null,"match":"exact","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":[]}