Service brakes, hydraulic: foundation components: master cylinder (Wagner)
Vehicle equipment recall 79E-023. NHTSA received WAGNER’s report on Sep 14, 1979.
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The short answer
NHTSA received WAGNER’s report on Sep 14, 1979. 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?
The notice gives no hazard in a field of its own.
THE LOCK WIRE GROOVE IN THE BRAKE MASTER CYLINDER WAS IMPROPERLY MACHINED.
THIS COULD LEAD TO BRAKE FAILURE.
NHTSA, Recalls flat file before 2010. Released Oct 20, 2026. Updated daily.
- NHTSA’s part: Service brakes, hydraulic: foundation components: master cylinder.
What should you do?
DEALER WILL REPLACE EXISTING VERTICAL BRAKE MASTER ASSEMBLY. THE LOCK WIRES IN THE ASSEMBLY WILL BE REPLACED BY TRU-ARC RINGS.
NHTSA, Recalls flat file before 2010. Released Oct 20, 2026. Updated daily.
- How to reach the firm: VEHICLE CATEGORY: TRUCKS, TILT CAB.SYSTEM: SERVICE BRAKES; VERTICAL BRAKE MASTER ASSEMBLY, MODEL NO. F-76151.CONSEQUENCES OF DEFECT: BRAKE FAILURE COULD RESULT IN LOSS OF VEHICLE CONTROLAND AN ACCIDENT.
Which ones are recalled?
NHTSA counts 1,500 items potentially involved, across everything this recall names.
NHTSA, Recalls flat file before 2010. Released Oct 20, 2026. Updated daily.
- Wagner WagnerBuilt from May 1, 1978 to Jun 1, 1979
Who is recalling it?
- Made by WAGNER.
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.