Recall 78V-159: 1978 Harley-Davidson FLH1200, 1978 Harley-Davidson FLH80 and 5 more

The problem

The involved motorcycles were manufactured with front brake master cylinders in which the plunger piston bore diameter was honed .015 inches over maximum specifications. This oversized bore results in a poor fit between the elastomeric piston cup and the cylinder bore, which allows fluid leakage from the hydraulic system.

The fix

Dealer will inspect and, if necessary, replace the front brake master cylinder assembly at no cost to owner.

Notes

Vehicle description: motorcycles.system: service brakes; hydraulic system.consequences of defect: fluid depletion could result in loss of brakingeffectiveness, loss of vehicle control, and an accident.note: insufficient brake fluid in the system may be indicated by fluid leakagearound the master cylinder and increased free play in the hand lever.

Recall details

Vehicles in this recall

Not every vehicle of these model years is included. Enter your VIN at nhtsa.gov/recalls ↗ or ask a dealer.

Frequently asked questions

What is recall 78V-159?

The involved motorcycles were manufactured with front brake master cylinders in which the plunger piston bore diameter was honed .015 inches over maximum specifications. This oversized bore results in a poor fit between the elastomeric piston cup and the cylinder bore, which allows fluid leakage from the hydraulic system.

How is recall 78V-159 fixed?

Dealer will inspect and, if necessary, replace the front brake master cylinder assembly at no cost to owner.

Is the recall repair free?

Yes. Safety recall repairs are free at authorized dealers. Check whether your vehicle is included with its VIN at nhtsa.gov/recalls.