{"nhtsa_id":10179171,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-09-09","date":"2020-08-21","document_id":"SS1034783","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"Service Solution for 20K Detroit Axle King Pin Lube Access. WST trucks equipped with 20k Detroit front axles and disc brakes built up to 8/17/2020 do not have sufficient room to access the king pin grease zerk.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10179171-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10179171-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10179171","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"WESTERN STAR","model":"4700","year_from":2019,"year_to":2021,"match":"exact","vehicle_ids":["2019_western-star_4700","2020_western-star_4700","2021_western-star_4700"]},{"make":"WESTERN STAR","model":"4900","year_from":2019,"year_to":2021,"match":"exact","vehicle_ids":["2019_western-star_4900","2020_western-star_4900","2021_western-star_4900"]}],"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":[]}