{"nhtsa_id":43092,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1995-11-01","date":"1995-04-01","document_id":"1255A","mfr_campaign":null,"replaces":"12-55","component":"ELECTRICAL SYSTEM:IGNITION","mfr_system":null,"summary":"REVISED SPARK PLUG SPECIFICATIONS FOR VEHICLES WITH V12 ENGINES. *TW","document":null,"url":"https://open.wenmarpro.com/bulletins/43092","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"ignition","name":"Ignition","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"JAGUAR","model":"XJ12","year_from":null,"year_to":null,"match":"exact","vehicle_ids":[]},{"make":"JAGUAR","model":"XJR","year_from":1995,"year_to":1995,"match":"exact","vehicle_ids":["1995_jaguar_xjr"]},{"make":"JAGUAR","model":"XJS","year_from":1990,"year_to":1995,"match":"exact","vehicle_ids":["1990_jaguar_xjs","1991_jaguar_xjs","1992_jaguar_xjs","1993_jaguar_xjs","1994_jaguar_xjs","1995_jaguar_xjs"]}],"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":[]}