{"nhtsa_id":10055215,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2014-04-23","date":"2014-02-21","document_id":"TIBU-7394","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:DIESEL","mfr_system":null,"summary":"CATERPILLAR: INFORMATION REGARDING THE DOSER NOZZLE KEEPS PLUGGING UP FROM THE CARBON BRIDGING OVER NOZZLE, IN SOME TRUCKS, AND A NEW DESIGN/STYLE WILL REPLACE OLD STYLE, AND REDUCE CARBON BRIDGING. MODEL CT660. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10055215","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CATERPILLAR","model":"CT660","year_from":2012,"year_to":2014,"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":[]}