INTERNATIONAL 9900I · model year

2006 INTERNATIONAL 9900I

1 NHTSA complaints, and 3 active recalls for this specific cohort.

NHTSA overall rating

Not crash-tested

New Car Assessment Program

The 2006INTERNATIONAL9900I carries 1 consumer safety complaint in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 0 fires, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.

Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2006 9900I is suspension:rear:springs:leaf spring assembly:hanger/bracket with 1 filings. Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability. This model year has 3 active recall campaigns, which means the manufacturer is obligated to remedy the covered defect at no charge for the life of the vehicle — the full NHTSA campaign numbers are listed below.

NHTSA currently has 22 investigation files overlapping the 2006 9900I. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.

1
Complaints
0
Crashes
0
Fires
0
Injuries
0
Deaths

Total Complaints

1 filings

Crashes Reported

0 reports

Source

NHTSA ODI

Federal complaints database

Complaints vs. fleet median (215)

At or below the fleet median complaint volume.

Complaints by Component

ComponentCount
SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY:HANGER/BRACKET1

Recalls (3)

05V29600024/06/2005

ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES

ON CERTAIN 4X2 AND 6X4 HEAVY DUTY TRUCKS, THE POSITIVE BATTERY CABLE BETWEEN THE BATTERIES AND THE STARTER MAY RUB AGAINST AN ELECTRICAL GROUND CABLE BETWEEN THE STARTER AND FRAME RAIL.

23V35300018/05/2023

EXTERIOR LIGHTING:BACK UP LIGHTS

Navistar, Inc. (Navistar) is recalling certain 2000-2003 International 8100, 2001-2003 International 9100i, 2001-2007 International 9400i, 2001-2010 International 9200i, 2002-2007, 2009 International 8500, 2003-2007, 2013 International 9900i, 2003-2018 International 8600, 2004, 2007 International 99

09V38600005/10/2009

ENGINE AND ENGINE COOLING

NAVISTAR IS RECALLING CERTAIN MODEL YEAR 2003 THROUGH 2008 HEAVY TRUCKS MANUFACTURED BETWEEN APRIL 1, 2003 AND DECEMBER 21, 2007, EQUIPPED WITH CATERPILLAR C15 ENGINES. THE VARIABLE VALVE ACTUATION (VVA) OIL LINE MAY WEAR AGAINST THE P-CLIPS RETAINING THE OIL LINE, CAUSING AN OIL LEAK.

Recent Complaints

20080201SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY:HANGER/BRACKET

SPRING HANGERS ON OUR INTERNATIONAL 9900I TRUCKS, ON THE REAR DRIVE AXLES HAVE BEEN CRACKING AND BREAKING INTO TWO PIECES. WE HAVE HAD 2 OR 3 SO FAR THAT HAVE BROKEN. IF THEY ARE NOT CAUGHT IN TIME THE AXLES COULD MOVE OUT OF ALIGNMENT AND CAUSE THE TRUCK TO DOG WALK OUT OF THEIR LANE OF TRAVEL. *TR

Mileage: 345,000

Compare 2006INTERNATIONAL9900I to Similar Vehicles

NHTSA Investigations

View all investigations

Frequently Asked Questions

How many complaints does the 2006 INTERNATIONAL 9900I have?
The 2006 INTERNATIONAL 9900I has 1 NHTSA complaints, 0 crashes, 0 fires, 0 injuries, and 0 deaths reported.
Are there any recalls for the 2006 INTERNATIONAL 9900I?
Yes, the 2006 INTERNATIONAL 9900I has 3 recall(s). The most common affected component is ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES. Recalls are issued by NHTSA and manufacturers must provide a free remedy.
What are the most common problems with the 2006 INTERNATIONAL 9900I?
The most-complained component for the 2006 INTERNATIONAL 9900I is SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY:HANGER/BRACKET with 1 complaints. Other frequently reported areas include various components.
Is the 2006 INTERNATIONAL 9900I safe to buy?
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. No NHTSA crash test rating is available for this model year. Compare with other model years using the links above.
Where does this data come from?
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.

Vehicle Safety Guides

Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.