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Recall campaign77V164000

Recall 77V164000: 1978 Harley-Davidson 1200

Service brakes, hydraulic › Foundation components › Master cylinder
Report received
Sep 28, 1977
Manufacturer
Harley-davidson motor co.
Potentially affected
385vehicles
Model years
1978

Check your own vehicle. A recall applies only to vehicles within the affected build range. Enter your VIN at nhtsa.gov/recalls. Recall repairs are free at a franchised dealer.

What NHTSA recorded

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.

Remedy

Dealer will inspect and, if necessary, install the correct master cylinder o-ring without charge to owner.

Affected model years

Pages for each model year show complaints, parts, mileage and other recalls.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.