{"nhtsa_id":11014992,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-03-05","date":"2025-02-27","document_id":"TSB250015","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"This Technical Service Bulletin describes the verification and resolution steps for the spark plug, rocker lever cover top seal and dust seal of the X15N engine which may allow water from engine wash operations to reach the spark plug, resulting in rust and misfire fault codes.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11014992-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11014992-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11014992","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"X15N","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":[]}