Peterbilt 389 vs 589: Choosing Between Classic and Next-Gen

Peterbilt 389 vs 589

Let’s start with a quick quiz. Can you guess whether the following quotes are attributed to the 2007 Peterbilt 389 release or the release of the 2024 Peterbilt 589?

If you circled either one—you’re right. These comments have been directed at both models during their respective launches.

When the 389 replaced the legendary 379, drivers weren’t shy about voicing their opinions. Fast forward to today, and the 589 is getting the same treatment as it steps in for the beloved 389.

Despite the initial resistance, history shows us that every new Peterbilt flagship models were no only adopted but eventually earn their own loyal following.

Exterior Differences 

Hood Design

The model 589 isn’t a radical redesign—it’s an evolution. The hood has a more dramatic flare than the 389, designed to accommodate a wider cab, improve airflow and aerodynamics.

Air Breathers

At first glance, they seem untouched, but the 589’s air breathers are now integrated into the cowling and route air from below instead of above like on the 389. Peterbilt says this new setup is more efficient, easier to maintain, and less prone to debris buildup.

Controversial Windshield Change

Perhaps the most talked-about change: the windshield.

• The 389 has the classic split windshield.

• The 589 uses a one-piece curved windshield for better visibility and aerodynamics.

As one owner operator who wasn’t pleased with the new one piece windshield put it, “I am not looking to buy a 589 for its aerodynamics and improved site lines. If I wanted those features, I would buy a 579.”

While practical, many longtime Peterbilt fans see this as a step too far from tradition. Some owners have even customized their trucks back to a split windshield to preserve the iconic look.

Mirror Upgrades

The 589 features West Coast-style mirrors that are 2 inches taller than the 389’s. It’s a subtle but functional update.

Door Design and Access

Gone are the riveted doors of the 389. The 589 uses more modern doors similar to those found on other Peterbilt models.

• The new doors are wider for easier cab access.

• They allow for a larger step and improved side storage.

• The diamond plate battery box is no longer standard—another point of debate among purists.

While many traditionalists resist these changes, fleet and company owners often welcome them for there increased safety and efficiency.

Interior Comparison: 

Cab Size and Comfort

This is one area where almost everyone agrees: the 589’s cab is better.

• It’s 8 inches wider than the 389’s, which means more room to move around, store gear, and rest comfortably.

• The new cab design also comes with doors that seal tight, resulting in less road and wind noise.

Dashboard Display

Here’s where opinions split again.

• The 389 featured an analog dash (although newer models had digital dashes) that many still find more appealing.

• The 589 comes equipped with a 15-inch digital display that’s anti-glare, anti-reflective, and fully customizable.

While modern and efficient, many drivers feel the Model 589 dash lacks the character and familiarity of its predecessor.

Conclusion:  Peterbilt 389 vs 589, And The Winner is?

If you’re a fan of traditional Peterbilt styling, you might stick with the 389 until it’s no longer an option. The analog dash, split windshield, diamond plate battery box, and riveted doors all hold sentimental—and some practical value.

But there’s no denying the 589’s strengths

• A safer, more aerodynamic truck

• A wider, quieter, more ergonomic cab

• A platform that still supports extensive customization

In short, the 589 is built for the modern driver, while tipping its cap to its heritage.

And lastly here’s a fun final fact:

In a popular video comparing the 389 and 589, the creator asked, “Which would you prefer?”
Views were split between the Model 589 and the 389. However, the most common answer?

“The Peterbilt 359.”