Hearth Record

Service brakes, hydraulic: foundation components: master cylinder (Harley-Davidson)

Vehicle recall 79V-100. NHTSA received HARLEY-DAVIDSON MOTOR CO.’s report on Apr 17, 1979.

NHTSA’s own record, on nhtsa.gov

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The short answer

NHTSA received HARLEY-DAVIDSON MOTOR CO.’s report on Apr 17, 1979. Copied from NHTSA on Oct 26, 2026.

Every line below is in NHTSA’s own words, with its source beside it.

What’s wrong with it?

The notice gives no hazard in a field of its own.

CERTAIN VEHICLES MAY HAVE BEEN EQUIPPED WITH FRONT BRAKE MASTER CYLINDERS WHICH HAVE FISSURES IN THE CYLINDER BODIES.

THIS WOULD ALLOW BRAKE FLUID LEAKAGE THROUGH THE FISSURED SECTION.

Source:

NHTSA, Recalls flat file before 2010. Released Oct 26, 2026. Updated daily.

  • NHTSA’s part: Service brakes, hydraulic: foundation components: master cylinder.

What should you do?

DEALER WILL REPLACE DEFECTIVE FRONT BRAKE MASTER CYLINDERS WITHOUT CHARGE TO OWNERS.

Source:

NHTSA, Recalls flat file before 2010. Released Oct 26, 2026. Updated daily.

  • How to reach the firm: VEHICLE DESCRIPTION: MOTORCYCLES.SYSTEM: SERVICE BRAKES; MASTER CYLINDER, FRONT BRAKE.CONSEQUENCES OF DEFECT: BRAKE FLUID LEAKAGE WOULD IMPAIR BRAKING EFFECTIVENESS.IN SOME CASES, COMPLETE LOSS OF FRONT BRAKES, LOSS OF VEHICLE CONTROL, AND ANACCIDENT COULD OCCUR.NOTE: OWNER IS ADVISED NOT TO OPERATE THE MOTORCYCLE UNTIL THE PROBLEM ISCORRECTED.
  • Check a vehicle by its VIN at NHTSA: the recalls still open on it are listed there.

Which ones are recalled?

NHTSA counts 370 vehicles potentially involved, across everything this recall names.

Source:

NHTSA, Recalls flat file before 2010. Released Oct 26, 2026. Updated daily.

  • Harley-Davidson 1000and 1979, before the model years listed here
  • Harley-Davidson 1340and 1979, before the model years listed here
  • Harley-Davidson 1200and 1979, before the model years listed here

Who is recalling it?

  • Made by HARLEY-DAVIDSON MOTOR CO..
Source:

NHTSA, Recalls flat file before 2010. Released Oct 26, 2026. Updated daily.

What the record doesn’t say

  • NHTSA’s recall file doesn’t say whether anyone was hurt.
  • Whether one vehicle or seat has been fixed: only its maker, or NHTSA’s lookup with a VIN, can say.
  • This recall names only model years before 2015, which have no pages here. Your VIN, at NHTSA, says which recalls are open on a vehicle.
  • How many have been returned or fixed isn’t in the notice.
Source:

Hearth Record wrote these lines.

Sources

Source:

Vehicle, car seat, tire and vehicle equipment recalls, owner complaints and crash ratings are from the National Highway Traffic Safety Administration (NHTSA). Copied on Oct 26, 2026.

How to read a record

Four things every record does, shown on an example record made up for this guide.

An example record, made up for this guide

An example nursing home

Made up for this guide: no real place is shown

Not fully inspected in over two years (CMS flag)

11 health citations at the latest inspection cycle

The state average is 14.3.

Source:

CMS, State and US Averages and Health Deficiencies. Released Oct 28, 2026. Updated monthly.

From the homeNone yet. Replies and paid listings aren’t open, and when they open they will sit here, below the record.

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Every fact names its source.

Who published it, when, and how often it changes sit beside each fact, with a link to the agency’s own file.

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