{"nhtsa_id":10034007,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2010-10-08","date":"2010-06-03","document_id":"SB-3042","mfr_campaign":null,"replaces":null,"component":"UNKNOWN OR OTHER; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL","mfr_system":null,"summary":"MCI: TAG AXLE R-12 BRAKE VALVE RETROFIT MAY BE SUBJECT TO CONTAMINATION INTRUSION THROUGH THE BALANCE PORT. INSTALLING A R-12 BRAKE VALVE, WHICH DOES NOT HAVE A BALANCE PORT, WILL ELIMINATE THE POTENTIAL FOR CONTAMINATION. NO MODEL OR MODEL YEARS LISTED. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10034007","components":[{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"labels-manuals","name":"Labels and manuals","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MCI","model":"G4100","year_from":2000,"year_to":2004,"match":null,"vehicle_ids":[]},{"make":"MCI","model":"G4500","year_from":2000,"year_to":2004,"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":[]}