Hearth Record

Seat belts: front: anchorage (Mack)

Vehicle recall 77V-174. NHTSA received MACK TRUCKS, INCORPORATED’s report on Oct 12, 1977.

NHTSA’s own record, on nhtsa.gov

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The short answer

NHTSA received MACK TRUCKS, INCORPORATED’s report on Oct 12, 1977. Copied from NHTSA on Oct 27, 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 INVOLVED VEHICLES DO NOT CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 209, “SEATBELT ASSEMBLIES”.

ALTHOUGH THE SEATBELTS IN QUESTION PERFORMED MARGINALLY WITH RESPECT TO THE 5000 LB.

LOAD REQUIREMENT, ADDITIONAL TESTING CONFIRMED THAT THE ANCHOR COULD FAIL, ALLOWING EITHER THE ANCHOR TO SLIP OVER THE HOLD-DOWN NUT OR THE ANCHOR TO SEPARATE INTO TWO PIECES.

Source:

NHTSA, Recalls flat file before 2010. Released Oct 27, 2026. Updated daily.

  • NHTSA’s part: Seat belts: front: anchorage.

What should you do?

DEALER WILL INSPECT AND, IF NECESSARY, REPLACE SEAT BELT ASSEMBLIES WITHOUT CHARGE TO OWNER.

Source:

NHTSA, Recalls flat file before 2010. Released Oct 27, 2026. Updated daily.

  • How to reach the firm: VEHICLE DESCRIPTION: TRUCKS.SYSTEM: INTERIOR; SEAT BELT ANCHORAGE ASSEMBLY.CONSEQUENCES OF DEFECT: IN THE EVENT OF AN ACCIDENT, THESE SEAT BELTS MAY NOTADEQUATELY RESTRAIN PASSENGERS AND SERIOUS INJURIES MAY RESULT.
  • Check a vehicle by its VIN at NHTSA: the recalls still open on it are listed there.

Which ones are recalled?

NHTSA counts 6,591 vehicles potentially involved, across everything this recall names.

Source:

NHTSA, Recalls flat file before 2010. Released Oct 27, 2026. Updated daily.

  • Mack DMand 1977, before the model years listed here
  • Mack Fand 1977, before the model years listed here
  • Mack CFand 1977, before the model years listed here
  • Mack HMMand 1977, before the model years listed here
  • Mack DMMand 1977, before the model years listed here
  • Mack RDand 1977, before the model years listed here
  • Mack Rand 1977, before the model years listed here
  • Mack Uand 1977, before the model years listed here
  • Mack RMand 1977, before the model years listed here

Who is recalling it?

  • Made by MACK TRUCKS, INCORPORATED.
Source:

NHTSA, Recalls flat file before 2010. Released Oct 27, 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 27, 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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