{"nhtsa_id":11020043,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-07-02","date":"2025-06-07","document_id":"E318","mfr_campaign":"E318","replaces":null,"component":"ENGINE; FUEL/PROPULSION SYSTEM","mfr_system":null,"summary":"Newly designed fuel injectors are available for EPA2021 compliant PACCAR MX-series engines to optimize engine performance. Injectors must be replaced as a full set (6 injectors) and associated software must be updated at the same time.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11020043-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11020043-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11020043","components":[{"id":"engine","name":"Engine","parent":null},{"id":"fuel-system","name":"Fuel system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"PETERBILT","model":"365","year_from":2021,"year_to":2025,"match":"exact","vehicle_ids":["2021_peterbilt_365","2022_peterbilt_365","2023_peterbilt_365","2024_peterbilt_365","2025_peterbilt_365"]},{"make":"PETERBILT","model":"367","year_from":2021,"year_to":2025,"match":"exact","vehicle_ids":["2021_peterbilt_367","2022_peterbilt_367","2023_peterbilt_367","2024_peterbilt_367","2025_peterbilt_367"]},{"make":"PETERBILT","model":"389","year_from":2021,"year_to":2025,"match":"exact","vehicle_ids":["2021_peterbilt_389","2022_peterbilt_389","2023_peterbilt_389","2024_peterbilt_389","2025_peterbilt_389"]},{"make":"PETERBILT","model":"520","year_from":2021,"year_to":2025,"match":"exact","vehicle_ids":["2021_peterbilt_520","2022_peterbilt_520","2023_peterbilt_520","2024_peterbilt_520","2025_peterbilt_520"]},{"make":"PETERBILT","model":"567","year_from":2021,"year_to":2025,"match":"exact","vehicle_ids":["2021_peterbilt_567","2022_peterbilt_567","2023_peterbilt_567","2024_peterbilt_567","2025_peterbilt_567"]},{"make":"PETERBILT","model":"579","year_from":2021,"year_to":2025,"match":"exact","vehicle_ids":["2021_peterbilt_579","2022_peterbilt_579","2023_peterbilt_579","2024_peterbilt_579","2025_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":[]}