{"nhtsa_id":617222,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-03-14","date":"2000-11-01","document_id":"011100","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:GASOLINE","mfr_system":null,"summary":"SUBJECT REGARDING THE ENGINE EXCHANGE PROGRAM FOR 6600 DURAMAX DIESEL ENGINES. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/617222","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SILVERADO","year_from":null,"year_to":null,"match":"exact","vehicle_ids":[]},{"make":"GMC","model":"SIERRA","year_from":null,"year_to":null,"match":"exact","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":[]}