{"nhtsa_id":10175186,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-05-18","date":"2020-04-03","document_id":"C2137A","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY","mfr_system":null,"summary":"This Campaign is being issued to address Variable Geometry Turbocharger Actuator failures on certain ISL9 CM2350 engines in Transit Bus applications. This document authorizes certified repair locations to replace the Variable Geometry Turbocharger Actuator and to install the appropriate vent lines. This is an update to a previously submitted communication.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10175186-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10175186-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10175186","components":[{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"turbocharger","name":"Turbocharger or supercharger","parent":"engine"}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"ISL9","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CUMMINS","model":"L9","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":[]}