{"nhtsa_id":10056319,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2014-10-29","date":"2014-08-20","document_id":"TIB-23-001","mfr_campaign":null,"replaces":"TIB-23-001-A","component":"POWER TRAIN:CLUTCH ASSEMBLY:PEDAL/HAND LEVER(MOTORCYCLE)","mfr_system":null,"summary":"KENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. DUE TO DEVELOPING BORATE SALT CRYSTALS FROM A BATCH OF DOT4 FLUID, CAUSING A BLOCKAGE IN CLUTCH MASTER CYLINDER AND NOT ABLE TO COMPRESS CLUTCH OR POOR PEDAL FEEL. MODEL 2013 T680, 880. *PE UPDATED 1/6/15. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10056319","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"clutch","name":"Clutch","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"KENWORTH","model":"T680","year_from":2013,"year_to":2014,"match":"exact","vehicle_ids":["2013_kenworth_t680","2014_kenworth_t680"]},{"make":"KENWORTH","model":"T800","year_from":2013,"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":[]}