{"nhtsa_id":10089394,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-01-24","date":"2015-09-23","document_id":"SEBD6904-00","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"A NEW HEAD GASKET IS USED ON CERTAIN TRUCK ENGINES - A NEW HEAD GASKET IS BEING USED THAT HAS AN IMPROVED FIRE RING AND A SEALING BEAD AROUND THE DRAIN BACK HOLE.","document":null,"url":"https://open.wenmarpro.com/bulletins/10089394","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CATERPILLAR","model":"CATERPILLAR","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":[]}