{"nhtsa_id":10028905,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2009-06-08","date":"2009-02-05","document_id":"SL-PI-31624","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE","mfr_system":null,"summary":"CATERPILLAR: PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE AFTER TREATMENT REGENERATION DEVICE (ARD) EXHAUST EXTENSION PIPE ON C15 ON HIGHWAY TRUCK ENGINES INSTALLED IN CERTAIN STERLING AND INTERNATIONAL CHASSIS. MODEL AND MODEL YEARS UNKNOWN. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10028905","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CATERPILLAR","model":"C15","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":[]}