Service brakes, hydraulic: foundation components (Master Brake)
Vehicle equipment recall 93E-014. NHTSA received MASTER BRAKE SYSTEMS’s report on Apr 13, 1993.
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The short answer
NHTSA received MASTER BRAKE SYSTEMS’s report on Apr 13, 1993. Copied from NHTSA on Oct 20, 2026.
Every line below is in NHTSA’s own words, with its source beside it.
What’s wrong with it?
LEAKAGE OF BRAKE FLUID DIMINISHES BRAKE EFFECTIVENESSAND MAY CAUSE COMPLETE LOSS OF BRAKES IF NOT NOTICED, CAUSING LOSS OF CONTROL,WHICH COULD RESULT IN AN ACCIDENT.
SYNCHRONIZING VALVES AND KITS FOR VALVES LEAK BRAKE FLUID DUE TO: 1.
THE VALVE O-RING WAS CUT OR MARRED DURING ASSEMBLY; 2.
IMPROPERLY COMPOUNDED O-RINGS AND KITS THAT ARE INCOMPATIBLE WITH THE BRAKE FLUID AND CAUSING FAILURES WERE INSTALLED IN THE VALVE ASSEMBLY.
NHTSA, Recalls flat file before 2010. Released Oct 20, 2026. Updated daily.
- NHTSA’s part: Service brakes, hydraulic: foundation components.
What should you do?
REPLACE THE VALVES WITH CORRECTLY ASSEMBLED VALVES.
NHTSA, Recalls flat file before 2010. Released Oct 20, 2026. Updated daily.
- How to reach the firm: SYSTEM: BRAKES.EQUIPMENT DESCRIPTION: A BRAKE SYNCHRONIZING VALVE USED TO ACTIVATE A SLAVEBOOSTER FOR TAG AXLE MOTOR HOME CHASSIS INSTALLATIONS.
Which ones are recalled?
NHTSA counts 637 items potentially involved, across everything this recall names.
NHTSA, Recalls flat file before 2010. Released Oct 20, 2026. Updated daily.
- Master Brake 7170Built from Aug 1, 1992 to Mar 1, 1993
Who is recalling it?
- Made by MASTER BRAKE SYSTEMS.
NHTSA, Recalls flat file before 2010. Released Oct 20, 2026. Updated daily.
What the record doesn’t say
- NHTSA’s recall file doesn’t say whether anyone was hurt.
- Which ones, by part or lot: the recall’s report on NHTSA’s site gives them where the maker did; this file gives part numbers only where its maker listed them.
- How many have been returned or fixed isn’t in the notice.
Hearth Record wrote these lines.
Sources
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National Highway Traffic Safety Administration, Recalls flat file before 2010 (FLAT_RCL_PRE_2010).
Released Oct 20, 2026 and checked Oct 20, 2026. Updated daily. Public domain (U.S. Government work).
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 20, 2026.