{"nhtsa_id":10110338,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-08-04","date":"2016-11-01","document_id":"TSB120053-110116","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING; EQUIPMENT:MECHANICAL","mfr_system":null,"summary":"This Technical Service Bulletin announces a wide valve camshaft lobe and valve rocker lever roller release to improve the robustness of the ISX valve camshaft. The camshaft lobe and rocker lever rollers were widened to reduce the contact stress between the camshaft and rocker lever rollers.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10110338-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10110338-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10110338","components":[{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"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":[]}