{"nhtsa_id":623382,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-10-26","date":"2001-04-01","document_id":"TSP154787","mfr_campaign":null,"replaces":"TSP142854","component":"ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY","mfr_system":null,"summary":"INFORMATION REGARDING UPDATED SERVICE PROCEDURE TO REPLACE THE THERMOSTAT IN THE D12C ENGINE. NLM","document":null,"url":"https://open.wenmarpro.com/bulletins/623382","components":[{"id":"engine","name":"Engine","parent":null},{"id":"cooling-system","name":"Cooling system","parent":"engine"},{"id":"radiator","name":"Radiator","parent":"engine"}],"codes":[],"topics":[],"vehicles":[{"make":"VOLVO","model":"D12","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"VOLVO","model":"D12A","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"VOLVO","model":"D12B","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"VOLVO","model":"D12C","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":[]}