Peterbilt 348
Medium-vocational truck • Production 2008–present
About the Peterbilt 348
The Peterbilt 348 is Peterbilt's Class 7-8 medium-vocational truck — sister to Kenworth T440. Used for dump applications, concrete mixers, light refuse, severe-duty utility, and service body work where the heavier 567 or 365 is overkill. PACCAR PX-9 standard, Cummins L9 optional. The 348 is one of Peterbilt's volume products in the vocational space.
Overview
The Peterbilt 348 is Peterbilt's Class 7-8 medium-vocational truck — sister to Kenworth T440. Used for dump applications, concrete mixers, light refuse, severe-duty utility, and service body work where the heavier 567 or 365 is overkill. PACCAR PX-9 standard, Cummins L9 optional. The 348 is one of Peterbilt's volume products in the vocational space.
Specifications
- Manufacturer
- Peterbilt
- Class
- Class 7-8
- Vehicle type
- Medium-vocational truck
- Cab type
- Day cab, crew cab
- Production years
- 2008–present
- Applications
- Dump, concrete mixer, refuse (light), utility, severe-duty service body
- Typical engines
- PACCAR PX-9, Cummins L9
- Typical transmissions
- Allison 3000 automatic
- GVWR range
- 33,000-50,000 lb
Design and engineering
Conventional cab with set-back front axle. Aluminum cab. Lighter chassis than 567 — better turning radius, lower curb weight. Crew cab option for utility/vocational work crews.
Generations and major changes
Market position and popularity
Steady mid-volume seller in Class 7-8 vocational markets. Used in municipal, utility, and severe-duty service body applications where Peterbilt brand carries weight.
Who buys this truck
Municipal fleets, utility companies, mid-size dump/concrete contractors.
Common problems and reliability notes
PACCAR PX-9 EGR cooler at 350K+ miles. DEF heater issues in cold-climate fleets. Cab squeaks with vocational vibration.
Pros and cons
✓ Pros
- • Right-sized for Class 7-8 vocational
- • Allison automatic standard
- • Peterbilt brand strength
⚠ Cons
- • Higher cost than Freightliner M2 112 for similar specs
- • PACCAR engine emissions complexity