{"nhtsa_id":10005846,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2004-03-17","date":"2004-01-21","document_id":"08060","mfr_campaign":null,"replaces":null,"component":"SERVICE BRAKES, AIR","mfr_system":null,"summary":"SEALCO SPRING BRAKE CONTROL VALVES PROBLEM. SEALCO NOTICE OF DEFECT FROM UTILITY TRAILER, SEALCO SERVICE BULLETIN AND SEALCO'S NOTIFICATION LETTER TO UTILITY TRAILER CUSTOMERS. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/10005846","components":[{"id":"brakes","name":"Brakes","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"SEALCO","model":"BRAKE VALVE","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":[]}