{"nhtsa_id":10206021,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-01-05","date":"2021-12-22","document_id":"SA-031-21c","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING; POWER TRAIN","mfr_system":null,"summary":"New Cylinder Head Assembly Established: A new cylinder head assembly for service parts has been newly established for SKYACTIV-G 2.5 with cylinder deactivation when replacement is needed. Valves, valve springs, valve spring seats, and cotters (IN/EX) are included in the new assembly.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10206021-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10206021-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10206021","components":[{"id":"engine","name":"Engine","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MAZDA","model":"CX-30","year_from":2020,"year_to":2021,"match":"exact","vehicle_ids":["2020_mazda_cx-30","2021_mazda_cx-30"]},{"make":"MAZDA","model":"CX-5","year_from":2018,"year_to":2021,"match":"exact","vehicle_ids":["2018_mazda_cx-5","2019_mazda_cx-5","2020_mazda_cx-5","2021_mazda_cx-5"]},{"make":"MAZDA","model":"MAZDA3","year_from":2019,"year_to":2021,"match":"exact","vehicle_ids":["2019_mazda_mazda3","2020_mazda_mazda3","2021_mazda_mazda3"]},{"make":"MAZDA","model":"MAZDA6","year_from":2018,"year_to":2021,"match":"exact","vehicle_ids":["2018_mazda_mazda6","2019_mazda_mazda6","2020_mazda_mazda6","2021_mazda_mazda6"]}],"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":[]}