Preliminary Evaluation · Closed
INTEGRAL HUB AND BEARING ASSEMBLY
Manufacturer: Mack Trucks, Inc.
This investigation led to a recall
NHTSA links this probe to recall campaign 03V201000.
Read the recall: what is defective and the free fix →What NHTSA is examining
The companies involved in this matter are: skf (hub mfr), arvinmeritor (front axle mfr), and mack (manufacturer of class viiitractor/trucks).skf identified manufacturing defects for specific build dates on front axle hub and bearings (wheel bearings) supplied to arvinmeritor.as a result, arvinmeritor notified mack of axles supplied with possible defective front hub assemblies.as a result of that notification, 998 trucks are being recalled by mack for defective front axle wheel bearings which may fail in such a way that a wheel separation or wheel bearing fire occurs.see attached summary report for additional details.
Vehicles under investigation
Source: NHTSA Office of Defects Investigation records, updated daily. An investigation is not a determination that a defect exists; many probes close without a recall.