Trucks · Make & Model reference
Western Star 4900 Reefer
Western Star 4900 Reefer — refrigerated / reefer 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)
Reefer unitCarrier / Thermo King
Trailer length pulled48 - 53 ft
Recent auction history
| Year range | Hours | Avg | Low | High |
|---|---|---|---|---|
| 2017-2022 | under 500k mi | $121,500 | $91,500 | $158,000 |
| 2010-2016 | 500k - 800k mi | $81,000 | $61,000 | $105,500 |
| 1987-2009 | 800k+ mi | $50,500 | $38,000 | $66,000 |
AI price estimate
Excellent, low miles
2022 model year
$137,000
Good, average miles
2016 model year
$91,500
Fair, high miles
1987 model year
$50,500
Common problems to check
- Reefer unit belt and clutch wear
- Alternator load issues from reefer power
- Fuel contamination affecting reefer
- Trailer power cord corrosion
Why buyers pick it
- Heavy vocational chassis
- Customizable for severe duty
- Strong frame and driveline
- Detroit powertrain options
Best jobs for this machine
Temperature-controlled freightProduce haulingFrozen food distributionPharma logistics
Western Star 4900 Reefer for sale on Equip Place
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