Trucks · Make & Model reference
Western Star 4900 Sleeper
Western Star 4900 Sleeper — sleeper truck used across construction, logistics, and vocational fleets.
Operating weight
18,500 lb
Horsepower
400-600 hp
Years produced
1987-2022
AI-updated · Last refresh 7/20/2026
Full specifications
Horsepower400-600 hp
GVWR (typical)18,500 lb
Transmission10 - 18 speed manual / automated manual
EngineCummins / Detroit / PACCAR class 8 diesel
Fuel tank capacity100 - 150 gal (dual)
Sleeper size72 - 80 in
Wheelbase230 - 265 in
Recent auction history
| Year range | Hours | Avg | Low | High |
|---|---|---|---|---|
| 2017-2022 | under 500k mi | $117,000 | $88,000 | $152,000 |
| 2010-2016 | 500k - 800k mi | $78,000 | $58,500 | $101,500 |
| 1987-2009 | 800k+ mi | $49,000 | $36,500 | $63,500 |
AI price estimate
Excellent, low miles
2022 model year
$131,500
Good, average miles
2016 model year
$88,000
Fair, high miles
1987 model year
$49,000
Common problems to check
- EGR and DPF regeneration faults on emissions-era engines
- Air ride cab bushing wear
- APU / bunk HVAC failures
- Turbo actuator faults
Why buyers pick it
- Heavy vocational chassis
- Customizable for severe duty
- Strong frame and driveline
- Detroit powertrain options
Best jobs for this machine
Long-haul OTR freightTeam driving operationsCross-country dry vanReefer pulling
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