{"nhtsa_id":50986,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1997-06-17","date":"1996-12-02","document_id":"962530","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:COOLING SYSTEM","mfr_system":null,"summary":"COOLING SYSTEM - RADIATOR SUPPLY TANK LEAKS FROM LOWER 90 DEGREE PIPE FITTING - L SERIES VEHICLES EQUIPPED WITH CUMMINS N14 ENGINE - COOLING SYSTEM - UPPER RADIATOR PIPE CHAFES ON AIR-TO-AIR PIPE - LOUISVILLE/AEROMAX VEHICLES BUILT THROUGH8/15/96 EQUIPPED WITH CAT 3176 ENGINE. *TW","document":null,"url":"https://open.wenmarpro.com/bulletins/50986","components":[{"id":"engine","name":"Engine","parent":null},{"id":"cooling-system","name":"Cooling system","parent":"engine"}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"L SERIES (HEAVY)","year_from":1994,"year_to":1994,"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":[]}