Reliability & cost of ownership
Western Star 4900ex Reliability & Common Problems
How reliable is the Western Star 4900ex? Compare every model year side by side — NHTSA recalls, owner complaints, and crash-test stars — then open the year you're shopping for a full reliability and repair-cost forecast.
Western Star 4900ex problems by model year
2 recall entries and 3 owner complaints on file across 2 model years, sourced from the federal NHTSA database.
| Year | Recalls | Complaints | NCAP stars | Full report |
|---|---|---|---|---|
| 2007 4900ex | 1 | 2 | No NCAP test | Reliability forecast → |
| 2006 4900ex | 1 | 1 | No NCAP test | Reliability forecast → |
Most-complained-about components
Owner complaints filed with NHTSA against the Western Star 4900ex, grouped by the component each complaint names — the fastest read on where this model gives trouble.
- structure1 complaint
- equipment1 complaint
- engine and engine cooling1 complaint
- tires1 complaint