{"nhtsa_id":10188852,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-03-15","date":"2021-02-26","document_id":"TSB210041-022620","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"This Technical Service Bulletin describes the verification and resolution of leaking air compressor coolant line grommets due to deterioration. This may lead to passage of the coolant around the grommet.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10188852-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10188852-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10188852","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"L9","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":[]}