{"nhtsa_id":10180503,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-10-01","date":"2020-09-29","document_id":"20TS-03REV2","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Revised Technical Service Letter for DD Heavy Duty Platform Belt Tensioner Change. A newly designed, dual-arm friction shoe damping tensioner was implemented for the DD Heavy Duty Platform. The revision includes additional information on retrofit and service kits.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10180503-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10180503-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10180503","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FREIGHTLINER","model":"114SD","year_from":2018,"year_to":2021,"match":"exact","vehicle_ids":["2018_freightliner_114sd","2019_freightliner_114sd","2020_freightliner_114sd","2021_freightliner_114sd"]},{"make":"FREIGHTLINER","model":"122SD","year_from":2018,"year_to":2021,"match":null,"vehicle_ids":[]},{"make":"FREIGHTLINER","model":"BUSINESS CLASS M2","year_from":2018,"year_to":2021,"match":null,"vehicle_ids":[]},{"make":"FREIGHTLINER","model":"CASCADIA","year_from":2018,"year_to":2021,"match":"exact","vehicle_ids":["2018_freightliner_cascadia","2019_freightliner_cascadia","2020_freightliner_cascadia","2021_freightliner_cascadia"]},{"make":"WESTERN STAR","model":"4700","year_from":2018,"year_to":2021,"match":"exact","vehicle_ids":["2018_western-star_4700","2019_western-star_4700","2020_western-star_4700","2021_western-star_4700"]},{"make":"WESTERN STAR","model":"4800","year_from":2018,"year_to":2021,"match":"exact","vehicle_ids":["2018_western-star_4800","2019_western-star_4800","2020_western-star_4800","2021_western-star_4800"]},{"make":"WESTERN STAR","model":"4900","year_from":2018,"year_to":2021,"match":"exact","vehicle_ids":["2018_western-star_4900","2019_western-star_4900","2020_western-star_4900","2021_western-star_4900"]},{"make":"WESTERN STAR","model":"5700","year_from":2018,"year_to":2021,"match":"exact","vehicle_ids":["2018_western-star_5700","2019_western-star_5700","2020_western-star_5700","2021_western-star_5700"]},{"make":"WESTERN STAR","model":"6900","year_from":2018,"year_to":2021,"match":"exact","vehicle_ids":["2018_western-star_6900","2019_western-star_6900","2020_western-star_6900","2021_western-star_6900"]}],"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":[]}