{"nhtsa_id":10085384,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-12-02","date":"2013-02-11","document_id":"TSB130027-013113","mfr_campaign":null,"replaces":null,"component":"ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)","mfr_system":null,"summary":"THIS TECHNICAL SERVICE BULLETIN PROVIDES INFORMATION ON THE EXHAUST GAS RECIRCULATION (EGR) COOLER MOLDED HOSE, PART NUMBER 5258626. IN CERTAIN OPERATING CONDITIONS, FATIGUE AND/OR TWIST CONDITIONS CAN CAUSE THIS EGR COOLER SUPPLY HOSE TO DEVELOP A CRACK OR SPLIT, RESULTING IN AN EXTERNAL COOLANT LEAK. DURING INSTALLATION OF THIS HOSE, MAKE SURE THAT IT IS NOT TWISTED. IN ADDITION, INSTALLATION OF THE COOLANT THERMOSTAT PART NUMBER 5274349, WILL REDUCE CONDITIONS WHICH CONTRIBUTE TO HOSE FATIQUE AND SUBSEQUENT CRACKING.","document":null,"url":"https://open.wenmarpro.com/bulletins/10085384","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null},{"id":"egr-valve","name":"EGR valve","parent":"exhaust-emissions"}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"ISC8.3","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CUMMINS","model":"ISL9","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":[]}