{"nhtsa_id":10202371,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-10-25","date":"2021-08-31","document_id":"ATC2394A","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"This Account Team Coverage is being issued to address leaks from aluminum oil cooler on certain L9N CM2380 L124B engines. This field action authorizes certified repair locations to replace the aluminum oil cooler with a stainless steel oil cooler. This is an update to a previously submitted communication.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10202371-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10202371-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10202371","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"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":[]}