{"nhtsa_id":635147,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-10-18","date":"2002-07-01","document_id":"214017","mfr_campaign":null,"replaces":"214017","component":"ENGINE AND ENGINE COOLING:ENGINE:GASOLINE","mfr_system":null,"summary":"SUBJECT REGARDING VALVE BRIDGE REPLACEMENT USED ON CERTAN VOLVO D12C ENGINES. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/635147","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"VOLVO","model":"ACL","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"VOLVO","model":"VHD","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"VOLVO","model":"VN","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"VOLVO","model":"WG","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":[]}