AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2006 Western Star 4900
Overall rating NHTSA-grounded
Below average
Estimated 5-year repair + maintenance cost: $15,000–$25,000
The 2006 Western Star 4900 has several recalls, particularly related to the engine, fuel system, and braking components, indicating potential reliability issues. The widespread recall on engine cooling and fuel line components suggests frequent problems, pushing the overall reliability to below average.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| fuel line | 60,000–90,000 miles | $500–$1,500 | common |
| engine oil line | 70,000–100,000 miles | $400–$1,200 | common |
| slack adjuster | 80,000–120,000 miles | $300–$800 | occasional |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil and filter change
- Brake system inspection
- Air filter replacement
- Transmission service
- Cooling system flush
- Fuel system service
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Oil leaks near engine
- Fuel odor or leaks
- Brake pedal sponginess
- Unusual engine noises
Generated by gpt-4o on 8/19/2026. Cost ranges are conservative estimates that account for typical regional variation.