{"nhtsa_id":10198814,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-07-06","date":"2021-06-30","document_id":"21PBE","mfr_campaign":null,"replaces":null,"component":"SERVICE BRAKES, AIR","mfr_system":null,"summary":"Safety Recall – TSE Brake Chamber Air Leak – NHTSA ID: 21V328. Meritor brake chambers were built with a misaligned park spring, which may cause a fatigue hole in the diaphragm and an internal air leak. The affected brake chambers will be replaced.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10198814-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10198814-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10198814","components":[{"id":"brakes","name":"Brakes","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"PETERBILT","model":"348","year_from":2020,"year_to":2020,"match":"exact","vehicle_ids":["2020_peterbilt_348"]},{"make":"PETERBILT","model":"579","year_from":2020,"year_to":2020,"match":"exact","vehicle_ids":["2020_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":[]}