{"nhtsa_id":10158760,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-04-22","date":"2019-03-26","document_id":"C2108A","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; ENGINE","mfr_system":null,"summary":"This field action authorizes certified repair locations to upfit certain ISC and ISL CM2250 engines with an improved Selective Catalytic Reduction (SCR) Catalyst, if the engine is included in the Engine Serial Number (ESN) list and has one of the SCR catalyst part numbers effected. This is an update to a previously submitted communication.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10158760-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10158760-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10158760","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null},{"id":"catalytic-converter","name":"Catalytic converter","parent":"exhaust-emissions"}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"ISC","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CUMMINS","model":"ISL","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":[]}