{"nhtsa_id":10244892,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-11-06","date":"2023-10-24","document_id":"TSB230181","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"This Technical Service Bulletin describes the verification and resolution of issue of spark plugs that are within specification or that could have the spark plug gap adjusted to be within specification are being replaced unnecessarily.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10244892-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10244892-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10244892","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"L9N","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":[]}