{"nhtsa_id":10193163,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-05-13","date":"2014-09-12","document_id":"TSN 31-08","mfr_campaign":null,"replaces":null,"component":"TRAILER HITCHES; EQUIPMENT","mfr_system":null,"summary":"All Freightliner models specifying and built with the Fifth wheel air actuated king pin release valve data code 579-008. Field reports on newly delivered vehicles that the air actuated king pin release valve mounting screws were found loose or in some cases missing. A missing mounting screw could result in the release knob jamming between the dash and valve body holding the valve in an open position.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10193163-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10193163-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10193163","components":[{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"trailer-hitch","name":"Trailer hitch","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FREIGHTLINER","model":"FREIGHTLINER","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":[]}