{"nhtsa_id":11023881,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-10-03","date":"2025-09-09","document_id":"S-1722","mfr_campaign":null,"replaces":null,"component":"SERVICE BRAKES","mfr_system":"Wheel End: Parking brake actuator","summary":"Installation Instructions - Knorr Bremse NG3 Brake Chamber Installation Instructions - These instructions cover the removal and installation of the service replacement Knorr-Bremse® NG3 piston-style parking brake chamber assembly on Air Disc Brakes (ADB). For additional information, refer to SD-23-7550 on B2Bendix.com.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11023881-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11023881-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11023881","components":[{"id":"brakes","name":"Brakes","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BENDIX","model":"AIR DISC BRAKE ACTUATOR","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"BENDIX","model":"AIR DISC BRAKE ACTUATOR 2","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"BENDIX","model":"WHEEL ENDS","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":[]}