OFFICIAL NHTSA RECALL
77V164000
Service Brakes, Hydraulic:foundation Components:master Cylinder
Reported Sep 28, 1977 · HARLEY-DAVIDSON MOTOR CO.
Summary
AN INCORRECT O-RING MAY HAVE BEEN INSTALLED IN THE REAR BRAKE MASTER CYLINDER. THIS COULD ALLOW AIR LEAKAGE INTO THE REAR BRAKE SYSTEM, POSSIBLY RESULTING IN LOSS OF REAR BRAKING EFFECTIVENESS.
Consequence
Not supplied in the source record.
Remedy
DEALER WILL INSPECT AND, IF NECESSARY, INSTALL THE CORRECT MASTER CYLINDER O-RING WITHOUT CHARGE TO OWNER.
Notes
VEHICLE DESCRIPTION: MOTORCYCLES.SYSTEM: SERVICE BRAKES; MASTER CYLINDER, O-RING.CONSEQUENCES OF DEFECT: LOSS OF REAR BRAKES COULD OCCUR WITHOUT PRIOR WARNINGAND COULD LEAD TO A LOSS OF VEHICLE CONTROL AND AN ACCIDENT.
This campaign page uses the representative official campaign record. Applicability-specific source variants appear on the linked vehicle pages. Recall counts refer to campaigns, not affected vehicles.
Vehicle entries in this campaign
This is model-level recall history. It does not confirm whether a particular VIN is affected or has received the repair. Check with NHTSA ↗