{"nhtsa_id":603966,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1999-03-12","date":"1999-01-25","document_id":"TC99002","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE","mfr_system":null,"summary":"SUBJECT ON SPECIAL SERVICE CAMPAIGN X01 TO REPLACE THE CYLINDER HEAD GASKETS. *YC","document":null,"url":"https://open.wenmarpro.com/bulletins/603966","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"TOYOTA","model":"4 RUNNER","year_from":1996,"year_to":1997,"match":"exact","vehicle_ids":["1996_toyota_4runner","1997_toyota_4runner"]},{"make":"TOYOTA","model":"T100","year_from":1995,"year_to":1996,"match":"exact","vehicle_ids":["1995_toyota_t100","1996_toyota_t100"]},{"make":"TOYOTA","model":"TACOMA","year_from":1995,"year_to":1997,"match":"exact","vehicle_ids":["1995_toyota_tacoma","1996_toyota_tacoma","1997_toyota_tacoma"]},{"make":"TOYOTA","model":"TIOO","year_from":1997,"year_to":1997,"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":[]}