{"nhtsa_id":10085583,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-12-06","date":"2012-10-19","document_id":"T1277","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"THIS TEMPORARY REPAIR PRACTICE ALLOWS THE DRILLING/TAPPING AND INSTALLATION OF A P-CLIP TO THE CYLINDER HEAD IN THE EVENT OF AN ENGINE BRAKE HARNESS FAILURE RESULTING FROM DAMAGE CAUSED BY CONTACT WITH THE ROCKER LEVERS DURING ENGINE OPERATION ON CERTAIN ENGINES.","document":null,"url":"https://open.wenmarpro.com/bulletins/10085583","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"ISX","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CUMMINS","model":"SIGNATURE","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":[]}