{"nhtsa_id":52418,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1997-07-24","date":"1997-02-18","document_id":"09B014","mfr_campaign":null,"replaces":null,"component":"STEERING:HYDRAULIC POWER ASSIST SYSTEM","mfr_system":null,"summary":"POWER STEERING SEAL UPDATE SHEPPARD M100 STEERING GEAR USED ON CH MODEL. *TW","document":null,"url":"https://open.wenmarpro.com/bulletins/52418","components":[{"id":"steering","name":"Steering","parent":null},{"id":"power-steering","name":"Power steering","parent":"steering"}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"CH","year_from":1991,"year_to":1997,"match":"exact","vehicle_ids":["1991_mack_ch","1992_mack_ch","1993_mack_ch","1994_mack_ch","1995_mack_ch","1996_mack_ch","1997_mack_ch"]}],"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":[]}