{"nhtsa_id":10201875,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-10-04","date":"2021-09-01","document_id":"S-1663","mfr_campaign":null,"replaces":null,"component":"PARKING BRAKE; SERVICE BRAKES, AIR","mfr_system":null,"summary":"The basic application requirements presented here apply to a standard air dryer installation. The majority of vehicles in use today will meet these basic requirements, however, some may not. Examples of vehicles that may not meet the requirements include, bulk trailer unloading operations and other high air consumption/continuous flow systems. While the Bendix® AD-HF® air dryer or the Bendix® AD-HFi™ air dryer can be used on these vehicles, the standard installation procedure presented in this manual may require modification to ensure proper operation and service life. Consult your local authorized Bendix parts outlet or sales representative for additional information.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10201875-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10201875-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10201875","components":[{"id":"brakes","name":"Brakes","parent":null},{"id":"parking-brake","name":"Parking brake","parent":"brakes"}],"codes":[],"topics":[],"vehicles":[{"make":"BENDIX","model":"SERVICE BRAKES AIR","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":[]}