Service brakes, hydraulic: foundation components: master cylinder
- Component
- Service brakes, hydraulic: foundation components: master cylinder
- Manufacturer
- MITSUBISHI FUSO TRUCK OF AMERICA, INC.
- Vehicles affected
- 3
- Reported to NHTSA
- 2005-03-15
- Owners notified
- 2005-04-21
Defect description
ON CERTAIN TRUCKS, THE BRAKE MASTER CYLINDER PISTON CUPS MAY HAVE BEEN MANUFACTURED WITH A DEFECT IN THE RUBBER SURFACE. RESIDUE MAY HAVE INVADED THE PISTON CUPS DURING THE MASTER CYLINDER MANUFACTURING PROCESS. THE RESIDUE COULD STICK TO THE CUPS AND CAUSE THEM TO CRACK DURING NORMAL BRAKING OPERATION.
Safety risk
A CRACK IN THE PISTON CUP COULD AFFECT THE TRUCK'S BRAKING ABILITY, AND CAUSE A CRASH.
Manufacturer remedy
DEALERS WILL INSTALL A MODIFIED BRAKE MASTER CYLINDER ASSEMBLY. THE RECALL BEGAN ON APRIL 21, 2005. OWNERS MAY CONTACT MITSUBISHI FUSO AT 1-856-467-4500.