{"nhtsa_id":39359,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1995-11-01","date":"1995-03-01","document_id":"94M12","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE","mfr_system":null,"summary":"SERVICE CAMPAIGN 94M-12 - DETROIT DIESEL HAS DETERMINED THAT CERTAIN 1994 DETROIT DIESEL SERIES 50 AND 60 ENGINES WILL REQUIRE THE OIL FILLER TO BE REPLACED TO PREVENT AN INTERFERENCE CONDITION WITH THE ALTERNATOR BELT. TO CORRECT THIS CONDITION, DEALERS WILL MAKE THE NECESSARY MODIFICATIONS. *TW","document":null,"url":"https://open.wenmarpro.com/bulletins/39359","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"DETROIT DIESEL","model":"DETROIT","year_from":1994,"year_to":1995,"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":[]}