United States 86V014000
Utility Trailer Manufacturing Company
The problem
A FORGING DEFECT IS PRESENT IN THE DANA SEMI TRAILER KING PIN WHICH CAUSES IT TO FAIL. CONSEQUENCE OF DEFECT: KING PIN FAILURE COULD CAUSE LOSS OF VEHICLE CONTROL WITHOUT PRIOR WARNING WHICH COULD LEAD TO A CRASH.
What owners should do
REPLACE THE FRONT SUBFRAME WHICH INCLUDES THE KING PIN.
Units 4400