{"nhtsa_id":10243358,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-10-03","date":"2023-09-01","document_id":"45-065","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING; POWER TRAIN","mfr_system":null,"summary":"Certain T680 Next Gen Cummins X15 have fan hub bracket hardware that is under torqued and could become loose and/or fail. Procedures are available to replace and properly torque the hardware.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10243358-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10243358-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10243358","components":[{"id":"engine","name":"Engine","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"KENWORTH","model":"T680","year_from":2020,"year_to":2023,"match":"exact","vehicle_ids":["2020_kenworth_t680","2021_kenworth_t680","2022_kenworth_t680","2023_kenworth_t680"]}],"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":[]}