{"nhtsa_id":10198946,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-07-06","date":"2021-06-16","document_id":"No. 28-21","mfr_campaign":null,"replaces":null,"component":"WHEELS","mfr_system":null,"summary":"List of approved wheel and tires for the 944.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10198946-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10198946-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10198946","components":[{"id":"wheels","name":"Wheels","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"PORSCHE","model":"944","year_from":1987,"year_to":1991,"match":"exact","vehicle_ids":["1987_porsche_944","1988_porsche_944","1989_porsche_944","1990_porsche_944","1991_porsche_944"]}],"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":[]}