Trucks · Make & Model reference
Peterbilt 378 Sleeper
Peterbilt 378 Sleeper — sleeper truck used across construction, logistics, and vocational fleets.
Operating weight
17,000 lb
Horsepower
330-475 hp
Years produced
1986-2007
AI-updated · Last refresh 7/20/2026
Full specifications
Horsepower330-475 hp
GVWR (typical)17,000 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 |
|---|---|---|---|---|
| 2002-2007 | under 500k mi | $48,500 | $36,500 | $63,500 |
| 1995-2001 | 500k - 800k mi | $32,500 | $24,500 | $42,000 |
| 1986-1994 | 800k+ mi | $20,500 | $15,000 | $26,500 |
AI price estimate
Excellent, low miles
2007 model year
$55,000
Good, average miles
2001 model year
$36,500
Fair, high miles
1986 model year
$20,500
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
- Iconic driver comfort and resale value
- Strong dealer network
- Durable aluminum cab
- Solid PACCAR / Cummins drivetrain options
Best jobs for this machine
Long-haul OTR freightTeam driving operationsCross-country dry vanReefer pulling
Peterbilt 378 Sleeper for sale on Equip Place
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