Verified OEM specifications — engine options, GVWR, dimensions, and drivetrain
Source: spec_sheet_pdf (1 PDF)
The Peterbilt 389 is a premium Class 8 long-nose conventional truck built for owner-operators who demand power and presence. The 2022 model offers PACCAR MX-13 or Cummins X15 engines producing up to 605 hp and 2,050 lb-ft of torque. GVWR reaches 80,000 lbs with GCWR capability up to 250,000 lbs for heavy-haul use. Sleeper configurations range from 63 to 86 inches. Manual 18-speed and Eaton Endurant 12-speed automated transmissions are available. The 389 features Peterbilt's signature chrome-accented exterior and premium cabin amenities. Wheelbase options from 230 to 270 inches accommodate diverse trailer and freight profiles. Base MSRP typically runs from $155,000 to $215,000.