Vehicle recall 92V084000 · June 10, 1992

1991-1992 Amertek CF4000L

Design of the rear wheel mounting assembly causes a high sensitivity to lug stud nut torque loss and subsequent stud failure through bending fatigue.

Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.

Summary: Design of the rear wheel mounting assembly causes a high sensitivity to lug stud nut torque loss and subsequent stud failure through bending fatigue.
Consequence: The rear wheel mounting stud can bend and/or break,resulting in detachment of the wheel from the axle if all five lug studs shouldfail.
Remedy: Amertek will reduce the dimension of the outside rear wheel tires; replace the lug nut spacers with cushion washers on each rear wheel hub; replace the current 4.38 inch studs with 3.25 inch studs; and delete the paint on the bevel surface of the stud holes on the wheel disc.
Notes: System: rear wheel mounting stud.vehicle description: aircraft rescue fire fighting truck.

Recall details

NHTSA campaign: 92V084000
Reported to NHTSA: June 10, 1992
Filed by: AMERTEK, INC.
Owner notification: October 17, 1992
Vehicles potentially affected: 118
Initiated by: NHTSA’s Office of Defects Investigation
Components: Wheels › Lugs/nuts/bolts/studs

Recall 92V084000 on nhtsa.gov, with the manufacturer’s documents

Vehicles covered

As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.

Amertek CF4000L (1991-1992): 1992, 1991

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