{"nhtsa_id":10136557,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-05-14","date":"2018-04-16","document_id":"TSB180046-041320","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR","mfr_system":null,"summary":"This Technical Service Bulletin describes the verfication and resolution of Fault Code 1664, 1691, 1922, 2692, 3256, 3376, 3396, or 4449 and/or possible noise coming from aftertreatment diesel oxidation catalyst (DOC) as caused by Welding issues found inside inlet tube of aftertreatment DOC causing baffle breakage.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10136557-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10136557-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10136557","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null},{"id":"catalytic-converter","name":"Catalytic converter","parent":"exhaust-emissions"}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"X15","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":[]}