{"nhtsa_id":10020434,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2006-10-04","date":null,"document_id":"18631","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE","mfr_system":null,"summary":"MBE 4000 OIL GALLERY THREADED PLUG INSTALLATION. NEW SERVICE KIT IS AVAILABLE TO INSTALL TWO THREADED PLUGS IN PLACE OF CUP PLUGS IN THE REAR OIL GALLERY ON MBE 4000 ENGINES. DETROIT DIESEL. *KB","document":null,"url":"https://open.wenmarpro.com/bulletins/10020434","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"UNKNOWN","model":"UNKNOWN","year_from":null,"year_to":null,"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":[]}