{"nhtsa_id":51317,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1997-06-27","date":"1997-01-16","document_id":"9701 1509","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE","mfr_system":null,"summary":"A NEW VERSION WASHER IS NOW INSTALLED WITH THE SECURING BOLT OF THE CAMESHAFT DRIVE GEAR. *JD","document":null,"url":"https://open.wenmarpro.com/bulletins/51317","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"PORSCHE","model":"911","year_from":1995,"year_to":1996,"match":"exact","vehicle_ids":["1995_porsche_911","1996_porsche_911"]}],"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":[]}