International Harvester 9400 Recalls & Complaints by Model Year
NHTSA lists 11 safety recalls and 8 owner complaints across 13 model years of the International Harvester 9400 (1987–2001). The most-complained-about year is 1997.
Pick your International Harvester 9400 model year
| Model year | Recalls | Complaints |
|---|---|---|
| 2001 International Harvester 9400 | 2 | 0 |
| 2000 International Harvester 9400 | 3 | 1 |
| 1999 International Harvester 9400 | 3 | 1 |
| 1998 International Harvester 9400 | 3 | 2 |
| 1997 International Harvester 9400 | 5 | 3 |
| 1996 International Harvester 9400 | 5 | 0 |
| 1995 International Harvester 9400 | 2 | 1 |
| 1994 International Harvester 9400 | 1 | 0 |
| 1993 International Harvester 9400 | 1 | 0 |
| 1991 International Harvester 9400 | 1 | 0 |
| 1989 International Harvester 9400 | 1 | 0 |
| 1988 International Harvester 9400 | 1 | 0 |
| 1987 International Harvester 9400 | 1 | 0 |
What International Harvester 9400 owners complain about
Across all model years, owners have filed 8 complaints with NHTSA. The 1997 model year has the most, with 3.
All International Harvester 9400 recalls (11)
Every NHTSA safety campaign that lists a International Harvester 9400, most recent first, with the model years each one covers.
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Recreational vehicle/trailer (equipment)
On certain conventional trucks equipped with pro-sleeper berths, water intrusion can be found in the bunk control panel area and pool in the tops of the dome light, tv/vcr, and or refrigerator power switches.
Remedy: Dealers will install a water shield over the back of the entire bunk control panel. Owner notification began on july 16, 2004. Owners should contact international at 1-800-448-7825.
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Slack adjusters (service brakes)
Vehicle description: heavy duty trucks equipped with air brake haldex automatic slack adjusters, long stroke brake chambers, and dana brakes. The automatic slack adjuster anchor brackets can fail due to fatigue fracture and completely separate, causing the slack adjusters to function as manual slack adjusters.
Remedy: Dealers will install a new bracket on each suspect slack adjuster. Owner notification began february 22, 2001. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive…
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Recreational vehicle/trailer (equipment)
Vehicle description: heavy duty trucks built with international code 16sch (lower bunk webbing restraint). Incorrect bolts were used to hold the bunk webbing restraint latch brackets to the bunk base.
Remedy: Dealers will inspect and replace all grade 5 bolts with grade 8 bolts as required.
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Vehicle speed control
These vehicles are equipped with a detroit diesel optimized idle system. If the ignition is turned on and the fuse for the electronic control module (ECM) power feed line is removed or burned out, unintentional cranking of the engine will occur..
Remedy: Detroit diesel distributors will rewire the vehicles using a revised ECM which will eliminate unintentional cranking.
Model years: 1997
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Suspension: rear
Vehicle description: school buses and heavy duty trucks equipped with rear axle assemblies produced by dana spicer. Certain rear axle assemblies were improperly heat treated which could allow pinion breakage at the pinion threads.
Remedy: Dealers will replace the rear axle carrier/pinion assembly.
Model years: 1997
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Suspension: rear
The drive axle housings consist of a plate steel center section and two forged spindles, one of which is welded to each end of the center section. Each spindle contains a keyway slot in which the locking tab for the wheel bearing nut locking mechanism is inserted. The length of the keyway slot may not be long enough to accommodate the…
Remedy: Dealers will replace the drive axle housing nuts with a conventional wheel nut hardware system.
Model years: 1997
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Suspension
The equalizing beam shaft of the tandem axle suspension were manufactured from as-rolled sae4140 steel rather than the specified annealed sae4140. These shafts can fracture inside the beam at the toe of the weld.
Remedy: Owner notification is being conducted by neway anchorlok. Dealers will inspect and replace all suspension suspension beams with suspension beams containing appropriate shafts.
Model years: 1996
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Recreational vehicle/trailer (equipment)
Straps holding the sleeper upper bunk in the raised position can release without warning.
Remedy: Dealers will modify the attachment of the upper bunk restraining strap to the upper bunk and rear wall of the sleeper and install a new redesigned bunk restraining strap.
Model years: 1995, 1996
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Driveline (power train)
The driveline could have little torque or no torque on the driveline nut that retains the yoke at the center bearing or bearings if the vehicle is equipped with multiple center bearings.
Remedy: Dealers will disconnect the driveline at the rear of the center bearing(s), torque the yoke nut and reconnect the driveline.
Model years: 1996
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Seats
The swivel seat assembly attachments between the upper and lower portions are inadequate to insure that the assembly will stay together during normal use. Vibration can cause the attaching bolts to work loose and fall out.
Remedy: Dealers will install a new re-designed swivel mount/stop ring, a spacer and new longer mounting bolts.
Model years: 1994, 1995
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Steering wheel/handle bar (steering)
The two brackets used to mount the tilt/telescoping steering columns to the dash may experience failure due to fatigue stress; cracks in the radius area at the bottom of the left bracket could propagate upward until bracket failure occurs.
Remedy: Install new redesigned steering column mounting brackets.
Model years: 1987, 1988, 1989, 1991, 1993
Other International Harvester models
- School Bus42 complaints
- 380041 complaints
- 470040 complaints
- 490021 complaints
- International Harvester11 complaints
- Conventional10 complaints
- 93007 complaints
- 92006 complaints
Source: NHTSA recall and complaint databases and EPA fuel economy data, October 2026. Complaint counts are owner reports to NHTSA, not verified defects. Recall counts are safety campaigns that list this model year; whether a particular car was already repaired depends on its VIN. How this data is compiled.