Recall Register

1974 Mack MB: recalls and complaints

NHTSA lists 4 recall campaigns for the 1974 Mack MB. The newest campaign is 78V172000. NHTSA received the report on 8 Aug 1978. The NHTSA record gives the component Steering / Linkages / Knuckle / Spindle / Arm. NHTSA has no complaint on file for this model year.

The NHTSA recall file shows no do-not-drive advisory and no park-outside advisory on these campaigns.

This page cannot show if a recall applies to one vehicle. The NHTSA VIN lookup shows the unrepaired recalls of one vehicle.

Remedy of the newest campaign, 78V172000, in the NHTSA record

The dealer will inspect and, if necessary, install cross steering arms of improved design and greater strength.
NHTSA VIN lookup

Complaint information entered into NHTSA’s Office of Defects Investigation vehicle owner's complaint database is used with other data sources to identify safety issues that warrant investigation and to determine if a safety-related defect trend exists.

NHTSA publishes these words. Source: NHTSA Datasets and APIs, section Complaints, read on . Complaint file through . Recall file through .

Since the last update

No tracked figure of this page changed in a data update. What the log tracks

All updates to the register

Recall campaigns

4 campaigns, newest first. 25,648 units in total.

  • 78V172000Steering / Linkages / Knuckle / Spindle / Arm
  • 78V171000Steering / Linkages / Knuckle / Spindle / Arm
  • 78V068000Service Brakes, Air / Antilock / Control Unit/Module
  • 74V101000Structure

  1. 78V172000Received . 13,800 units.

    Steering / Linkages / Knuckle / Spindle / Arm

    Defect, in the NHTSA record
    The existing cross steering arms may have insufficient fatigue life in the neck area. This is near the boss for the cross steering tube ball joint connection. Failure of either of the cross steering levers could lead to loss of steering control of the right front wheel.
    Remedy, in the NHTSA record
    The dealer will inspect and, if necessary, install cross steering arms of improved design and greater strength.

    Report filed by MACK TRUCKS, INCORPORATED. Owner notification date in the NHTSA record: .

  2. 78V171000Received . 2,100 units.

    Steering / Linkages / Knuckle / Spindle / Arm

    Defect, in the NHTSA record
    Deficiencies, in the form of forging laps, cracks and excessive decarburization during heat treatment, exist in the steering knuckles. Stresses imposed with integral hydraulic power steering may lead to a failure in the area of the steering arm attaching boss. This type of failure would cause loss of steering control.
    Remedy, in the NHTSA record
    Dealer will inspect and, if necessary, replace the left steering knuckle with an improved type of knuckle.

    Report filed by MACK TRUCKS, INCORPORATED. Owner notification date in the NHTSA record: .

  3. 78V068000Received . 9,700 units.

    Service Brakes, Air / Antilock / Control Unit/Module

    Defect, in the NHTSA record
    An axle "no brake" condition could result from an eaton controller internal electrical malfunction. This condition may cause the anti-wheel lock valve solenoid to be continuously energized and prevent the brakes from being applied on one of the axles. As a result, the anti-wheel lock warning lamp is not activated.
    Remedy, in the NHTSA record
    The dealer will inspect and, if necessary, replace the anti-wheel lock controller without charge to owner.

    Report filed by MACK TRUCKS, INCORPORATED. Owner notification date in the NHTSA record: .

  4. 74V101000Received . 48 units.

    Structure

    Report filed by MACK TRUCKS, INCORPORATED. Owner notification date in the NHTSA record: .

The campaign number opens the NHTSA record. Each quotation is the text of the NHTSA recall file.

Recall campaign: One recall in the NHTSA recall file, with one campaign number. A campaign can name many makes, models and model years.

Units: The number of vehicles or products that a recall can include. The manufacturer or the firm reports the number to the agency.

Complaints by component

The NHTSA complaint file has no complaint for this model year.

Investigations

The NHTSA investigation file has no investigation that names this model year.

Investigation: A study of a possible safety defect by the NHTSA Office of Defects Investigation. An investigation with no closing date in the NHTSA file is open.

Other model years

The number under each year is the number of recall campaigns.

  1. 19651
  2. 19661
  3. 19672
  4. 19682
  5. 19692
  6. 19703
  7. 19715
  8. 19724
  9. 19733
  10. 19744
  11. 19754
  12. 19762
  13. 19774
  14. 19783
  15. 19791

A year without a link has fewer than 2 campaigns and fewer than 25 complaints. It has no page.

Official channels

Cite this page

Recall Register. 1974 Mack MB: recalls and complaints. https://recallregister.com/vehicle/mack/mb/1974/. Source: NHTSA Office of Defects Investigation, recall, complaint and investigation files. Data through .

Sources

Source
NHTSA Office of Defects Investigation
Licence
US government work, public domain
Recall file through
29 Sep 2026
Complaint file through
29 Mar 2018
First complaint in the file
1 Jan 1995
Manufacturer in the recall file
MACK TRUCKS, INCORPORATED

The NHTSA record is the authority. A complaint count is the number of different complaint numbers for the make, the model and the model year. How the register is made. Report an error.

Questions

How many units are in the recall campaigns for the 1974 Mack MB?
25,648 units in 4 campaigns. A campaign can name other models and model years, and its units include them.
How many recall campaigns does the Mack MB have for all model years?
NHTSA lists 16 recall campaigns for the Mack MB, model years 1965 to 1979. 4 of them name the 1974 model year.
Is an NHTSA investigation of the 1974 Mack MB open?
The NHTSA investigation file has no investigation that names this model year.