{"nhtsa_id":10045041,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2012-08-14","date":"2012-06-01","document_id":"SB-12118","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS; ENGINE","mfr_system":null,"summary":"GMC/CHEVROLET: IF NOT TORQUED TO SPECIFICATION, ON CERTAIN TRUCKS, BOLTS ON 4 WATER PUMP PULLEY, COULD BACK OUT OR BREAK. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10045041","components":[{"id":"engine","name":"Engine","parent":null},{"id":"drive-belt","name":"Drive belts","parent":"engine"}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SILVERADO","year_from":2012,"year_to":2012,"match":"exact","vehicle_ids":["2012_chevrolet_silverado"]},{"make":"GMC","model":"SIERRA","year_from":2012,"year_to":2012,"match":"exact","vehicle_ids":["2012_gmc_sierra"]}],"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":[]}