{"nhtsa_id":51261,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1997-06-27","date":"1997-01-21","document_id":"TOY006972101","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE","mfr_system":null,"summary":"TO REDUCE INTERNAL ENGINE NOISE AT NORMAL OPERATING TEMERATURE, THE MAIN BEARING OIL CLEARANCE FOR #1 AND #4 MAIN BEARING HAS BEEN REDUCED BY INSTALLATION OF BEARING TWO MARKS HIGHER. *JD","document":null,"url":"https://open.wenmarpro.com/bulletins/51261","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"TOYOTA","model":"TOYOTA","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":[]}