Total Complaints
2 filings
WESTERN STAR 4900EX · model year
2 NHTSA complaints, and 1 active recall for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2007WESTERN STAR4900EX carries 2 consumer safety complaints 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 2007 4900EX is tires with 1 filings, followed by engine and engine cooling (1). 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 1 active recall campaign, 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.
No open NHTSA investigation overlaps the 2007 4900EX in the current dataset. 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.
Total Complaints
2 filings
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| TIRES | 1 |
| ENGINE AND ENGINE COOLING | 1 |
EXTERIOR LIGHTING
DAIMLER TRUCKS IS RECALLING 7 MY 2006-2007 WESTERN STAR 4900EX TRUCKS FOR FAILING TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, 'LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT.' ADDITIONAL MARKER LAMPS WERE INSTALLED BETWEEN THE REQUIRED IDENTIFICATION LAMPS
2008 STARTED OVERHEATING UNDER A LOAD AND UPHILLS. SEVERAL EGR VALVES, AIR CHARGE COOLERS, TURBOS, FLUSHING AND STEAM CLEANING RADIATOR,HEAD GASKETS, THERMO STATS, AND IT STILL OVERHEATS. WE HAVE CONSULTED WITH WESTERN STAR TO FIND THE PROBLEM AND THEY WILL NO LONGER RETURN OUR CALLS. *TR
ON MARCH 12, 2009 I BOUGHT 8 SUMITOMO 255/70R22.5 MODEL #ST727 TIRES FOR MY COMMERCIAL TRUCK. APROX. 50K MILES OF USE ONE OF THE TIRES ARE CRACKING FROM THE TOP OF THE TIRE GOING DOWN THE SIDE WALL. I WAS TOLD BY THE RETAILER THAT THE TIRE DID NOT SHOW ANY SIGNS OF IMPACT AND THAT IT IS ONLY A STRESS CRACK AND NOT A DEFECT. *TR
Mileage: 269,433
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.
Read our methodology — how this data is sourced, computed, and verified.