
PETERBILT 384
ENDURING CRAFTSMANSHIP
DURABILITY
Built to Work Hard
Offering years of durable performance, the lightweight, all-aluminum cab is huck-bolted with lap seam construction and bulkhead style doors for toughness and corrosion resistance. The Peterbilt 384 is available in a day cab configuration and with a selection of Unibilt® sleepers to provide multiple short haul configurations to fit virtually any business need or application.
ENGINE OPTIONS
POWERED BY QUALITY
Quality Performance, Application Optimized

The PACCAR MX-13 Engine brings a new level of innovation through industry-leading quality, exceptional reliability and proven performance. The combination of a Peterbilt truck and MX-13 Engine offers a long-term value through technologically advanced designs with lightweight materials that achieve excellent performance and superior fuel economy. The MX-13 provides longer service intervals, increased uptime, lower operating costs and higher resale value.
TECHNOLOGY
SMARTNAV
Moving Forward
The Premium interior features the revolutionary new SmartNav system, an integrated, infotainment system. SmartNav features a 7-inch touch screen that provides real-time vehicle monitoring, a truck-specific Garmin navigation system, hands-free Bluetooth® connectivity, voice recognition, a fully integrated audio system with satellite radio as well as MP3, USB and iPod® capabilities.
POWERTRAIN, DRIVETRAIN & EXHAUST
ENGINE
PACCAR MX-13PACCAR PX-9
Cummins ISX12
Cummins ISL9
Cummins ISL9-G
Cummins Westport ISX12-G
TRANSMISSION
Fuller ManualFuller Automated
Allison Automatic
EXHAUST
Vertical Single/DualHorizontal Single
FRAME
Steel 10-5/8″ / 10-3/4″5TH WHEELS
HollandJost
FRONT AXLES
Dana Spicer 12-14.6K lbs.Meritor 12K lbs.
REAR AXLES
Dana Spicer Single – 21-30K lbs.Dana Spicer Tandem – 40-46K lbs.
Meritor Single – 21-23K lbs.
Meritor Tandem – 40-46K lbs.
REAR SUSPENSIONS
Peterbilt Air LeafPeterbilt FLEX Air
Peterbilt Low Air Leaf
Peterbilt Low Low Air Leaf
Peterbilt Air Trac
Reyco 79KB
Reyco 102AR
Reyco Multi-Leaf