{"nhtsa_id":10042515,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2011-12-14","date":"2011-10-11","document_id":"REBE-7543","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE","mfr_system":null,"summary":"CATERPILLAR: ON CERTAIN HIGHWAY ENGINES THE EXISTING VALVE STEMS MAY BECOME WORN AND CAUSE HIGH CRANKCASE PRESSURE FAULT WHEN IT ALLOWS BLOWBY PAST THE VALVE STEM SEAL. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10042515","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CATERPILLAR","model":"C13","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CATERPILLAR","model":"C15","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CATERPILLAR","model":"C15","year_from":2007,"year_to":2007,"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":[]}