Goes the distance

The Peterbilt Model 389 is built for maximum appeal and enduring performance. It is the preferred truck for drivers in fleets large and small.

Peterbilt Model 389 With Trailer on Highway

This MX makes 13 your new lucky number

The Model 389 is available with the powerful, fuel-efficient PACCAR MX-13 engine with power ratings up to 510 hp and 1,850 lb.-ft. of torque for maximum performance. MX-13 engines are built for:

  • Uptime and durability: Every MX-13 comes standard with remote diagnostics to deliver focused uptime support
  • Fuel savings: Advanced design and lightweight materials help save up to 4% in fuel economy
  • Low service costs: Up to a 75,000-mile oil change interval, and low cost of routine maintenance over the life of the engine
  • Weight savings: The PACCAR MX-13 engine provides truck owners up to a 450-lb. weight savings over 15L engines, so you can haul more payload with every trip
  • Superior performance and quiet operation: MX engines are built with broad torque curves, so it requires less shifting, while quiet operation improves the driving experience

Durable, lightweight platform

The Peterbilt Model 389 features a proven all-aluminum cab and industry-exclusive aluminum hood, both are lightweight and optimized for maximum load capacity. The Model 389’s exterior features include:

  • An all-aluminum, tough-constructed cab: Rugged, lightweight, corrosion-resistant, and built to maximize performance and profitability
  • Signature stainless-steel grille
  • Aluminum hood
  • West Coast Style mirrors
  • External air cleaners
  • Pod mounted headlights
Peterbilt Model 389 Drives on Highway Along Coast

Exceptional operator experience, day and night

  • The Model 389 has a high-quality interior with ergonomic design
  • It features a traditional flat panel dash with ample space for gauges and switches
  • The charcoal finish reduces glare and is resistant to scratches and fading
  • The cab is spacious, inviting and highly functional
  • The Model 389 is available as both a day cab and a sleeper option
  • Ample overhead lighting and a powerful HVAC system


Peterbilt Model 389 Cop Holder

389 Resources & Downloads


June 18, 2024

Peterbilt Celebrates Success of the Model 589 with Over 5,000 Orders & 1,000th Delivery Milestone

Peterbilt is proud to announce a significant milestone for the new Model 589. The company has received over 5,000 orders for the Model 589, highlighting th...

June 4, 2024

Peterbilt Announces CARB Low NOx Compliant PACCAR MX-13 Engine Availability in Models 579, 567 and 589

Peterbilt is pleased to announce the availability of a new CARB low nitrogen oxide (NOx) compliant PACCAR MX-13 engine in the Models 579, 567 and 589. This...