{"nhtsa_id":10028549,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2009-05-08","date":"2009-03-11","document_id":"SB-215-026","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:COOLING SYSTEM","mfr_system":null,"summary":"MACK TRUCKS: TO IMPROVE WATER PUMP SEAL LIFE, REDUCE OCCURRENCES OF PUSHING COOLANT (COOLANT LOSS FROM THE SURGE TANK) AND REDUCE COOLING SYSTEM SURGE NOISE/VIBRATION (NOISE AND VERY RAPID VIBRATION OF UPPER RADIATOR TUBE). MODEL AND MODEL YEARS UNKNOWN. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10028549","components":[{"id":"engine","name":"Engine","parent":null},{"id":"cooling-system","name":"Cooling system","parent":"engine"}],"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":[]}