2018 Peterbilt 389 Day Cab

The 2018 Peterbilt 389 is an iconic Class 8 heavy-duty day cab, renowned for its blend of traditional style, power, rugged durability, and operator comfort. Geared towards regional and long-haul trucking, the 389 combines advanced engineering with timeless Peterbilt design, making it a favorite of both fleet operators and owner-operators.

Key Features

• Engine Options:

  • Commonly powered by the Cummins X15 (14.9L L6 diesel) or PACCAR MX-13 engines

  • Typical horsepower range: 400–605 hp; Cummins X15 setups often at 500–565 hp

  • Max torque: 1,450–2,050 lb-ft (varies by engine specification)

• Transmission:

  • Eaton Fuller RTLO-22918B 18-speed manual is a standard configuration on many units

  • Automated manual and other manual options available

• Axle & Chassis:

  • 6x4 driveline

  • Front Axle: 12,000–13,200 lbs

  • Rear Axle: 40,000 lbs commonly; up to 78,000 lbs on rare heavy-spec builds

  • GVWR: 52,000–53,200 lbs typical (configuration dependent)

• Cab & Body:

  • Day cab configuration for the referenced unit (sleeper versions also common in 389 lineup)

  • Aluminum cab and hood for reduced weight and corrosion resistance

  • Classic exterior: large triple-bar chrome grille, wrap-around crown, round headlight pods, and dual chrome exhausts

• Braking & Suspension:

  • Air brake system standard

  • Air ride suspension available for both cab and chassis

• Wheels & Tires:

  • Aluminum wheels standard on most models

  • 11R22.5 or 11R24.5 tires are commonly fitted

Typical Key Specs Table

Common Applications

• Regional and long-haul freight

• Bulk commodities and heavy cargo transport

• Flatbed, tanker, and specialized freight trailers

Performance & Operator Highlights

• Strengths: Exceptional durability, class-leading resale value, highly customizable drivetrain and chassis, and a classic, instantly recognizable profile.

• Operator Comfort: Air ride seat, ergonomic controls, superior forward visibility, and the option for advanced telematics and driver-assistance features.

Pricing Overview

• 2018 MSRP (typical new, depending on configuration): $140,000 – $180,000+ (varies by spec and drivetrain)

• Used (Current Market, 2025): $85,000 – $160,000+, depending on mileage, condition, and options

Summary

The Peterbilt 389 day cab remains an industry benchmark for quality, reliability, and iconic style. Its powerful engines, robust chassis, and operator-focused cab make it a go-to choice for demanding commercial hauling applications.