{"nhtsa_id":10244492,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-11-10","date":"2023-10-06","document_id":"45-065","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING; POWER TRAIN","mfr_system":null,"summary":"Certain 579 MLU chassis equipped with Cummins X15 engines have fan hub bracket hardware that are incorrect for the application and/or 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-10244492-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10244492-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10244492","components":[{"id":"engine","name":"Engine","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"PETERBILT","model":"579","year_from":2021,"year_to":2023,"match":"exact","vehicle_ids":["2021_peterbilt_579","2022_peterbilt_579","2023_peterbilt_579"]}],"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":[]}