{"nhtsa_id":10090111,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-02-01","date":"2015-08-11","document_id":"C1638C","mfr_campaign":null,"replaces":null,"component":"FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP","mfr_system":null,"summary":"THIS CAMPAIGN IS TO REPLACE THE LUBRICATING OIL FILTER BYPASS VALVE. THE NEW BYPASS VALVE DESIGN HAS MORE EFFECTIVE SEALING CAPABILITY AND PROVIDES BETTER PROTECTION TO FUEL PUMP LUBRICATED COMPONENTS.","document":null,"url":"https://open.wenmarpro.com/bulletins/10090111","components":[{"id":"fuel-system","name":"Fuel system","parent":null},{"id":"fuel-pump","name":"Fuel pump","parent":"fuel-system"}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"ISX12","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CUMMINS","model":"ISX15","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":[]}