{"nhtsa_id":10086642,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-12-20","date":"2015-06-02","document_id":"T1618A","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"THIS TEMPORARY REPAIR PRACTICE (TRP) ADDRESSES ENGINE PISTON AND PISTON RING OBSOLESCENCE. IF ANY OBSOLETE PISTON AND/OR PISTON RINGS ARE BEING REPLACED ON CERTAIN ENGINES, THIS TRP AUTHORIZES THE REPLACEMENT OF THE REMAINING PISTONS AND PISTON RINGS WITH THE REVISED PISTON KIT. THIS IS A REVISION TO A PREVIOUS COMMUNICATION.","document":null,"url":"https://open.wenmarpro.com/bulletins/10086642","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"ISX12G","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":[]}