{"nhtsa_id":10123201,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-11-14","date":"2017-10-17","document_id":"T1949","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS","mfr_system":null,"summary":"This Temporary Repair Practice is being issued to address belt jump resulting in belt shred on certain ISC/ISL Engines in PACCAR applications. The TRP allows for installation of an additional idler assembly and longer belt where these failure modes occur.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10123201-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10123201-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10123201","components":[{"id":"engine","name":"Engine","parent":null},{"id":"drive-belt","name":"Drive belts","parent":"engine"}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"ISC","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CUMMINS","model":"ISL","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":[]}