{"nhtsa_id":10136556,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-05-14","date":"2018-04-27","document_id":"TSB180045-041320","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM","mfr_system":null,"summary":"This Technical Service Bulletin announces the release of new intake and exhaust rocker levers with an enhanced lubricating oil feed to the cam follower roller to cam follower roller pin interface and how to identify the new rocker levers. A revised rocker lever design provides additional lubricating oil feed to improve robustness against cam follower roller to cam follower roller pin joint.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10136556-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10136556-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10136556","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"ISX","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CUMMINS","model":"ISX15","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":[]}