{"nhtsa_id":10028546,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2009-05-08","date":"2009-03-05","document_id":"SB-723-011","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:DIESEL","mfr_system":null,"summary":"MACK TRUCKS: OIL SEEPAGE AT THE UNIT INJECTOR HARNESS PASS THROUGH FITTING (LOCATED ON THE TIMING GEAR COVER ON THE LEFT HAND SIDE OF THE ENGINE) MAY BE NOTICED ON CERTAIN US 04 EMISSION COMPLIANT MP7 ENGINES. MODEL AND MODEL YEARS UNKNOWN. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10028546","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"MACK","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":[]}