null
Shop by Make, Model & Year
Peterbilt 389 Parts

Peterbilt 389 Parts

Find the best Peterbilt 389 aftermarket and custom parts in the business here at 4 State. The Peterbilt 389 is a big rig of choice for American truckers, with its dependable engine and great style. It's got all the features you expect from a Peterbilt model, plus many modern bells and whistles. 4 State Trucks can help you make your Pete 389 look like a million bucks. Whether you need aftermarket bumpers, exhaust, or seating, we've got you covered. Hit the open road in style and comfort with the best custom gear for your Peterbilt heavy duty truck or 18 wheeler."

Universal Parts

Peterbilt 389 Parts

The Peterbilt 389 served as the replacement of classic, iconic Peterbilt 379 model which ended production in 2007. We carry interior, exterior, and mechanical parts for 389 Model years ranging from 2007-2025. If you’re looking to start customizing your rig from the inside and out, this is a great place to start.

Upgrade Your Peterbilt 389 with Custom Accessories

Elevate appearance and performance. If you’re looking to replace a worn-out bracket, upgrade your Peterbilt 389 cab lighting, or add chrome trim pieces, you'll find heavy-duty truck parts built to last.

Fully Customize Your Rig

Choose from bold chrome accessories, polished exterior upgrades, or interior add-ons to make your cab feel more like home. We’ve got aerodynamic parts that help you save fuel, and LED lighting that makes sure you're seen—day or night.

Reliable Replacements

Not every job needs a full overhaul. Sometimes it’s just a mirror, a hood latch, or a grille trim. No matter what you're working on, we've got replacement Peterbilt 389 parts that fit right and install easy. You’ll also find upgrade options that are DIY-friendly if you’re wrenching on your own.

Get Customer Support

Not sure what part fits your rig? Don’t sweat it. Our team is here to help you find that perfect Pete 389 front bumper, drop visor, or sleek interior upholstery flooring. Whether you're an owner-operator, fleet manager, or shop mechanic, we’ve got the knowledge and inventory to get you back on the road fast.

Why Shop for Aftermarket 389 Parts at 4 State?

- Huge selection of Peterbilt 389 accessories. - Fast shipping on all in-stock parts. - Built for heavy-duty performance. - Great prices on trusted aftermarket brands. Ready to make your 389 look sharper, run better, or haul smarter?

Frequently Asked Questions About Peterbilt 389 Parts

What years do these parts fit, and are they compatible with my specific 389 model?

Most aftermarket parts are designed to fit Peterbilt 389 models from 2008 to present. However, there are important variations between model years, particularly with grille styles (horizontal vs. vertical bars), headlight configurations (dual vs. quad), and hood lengths (standard vs. extended). Always verify compatibility by checking your truck's build date and specific model configuration. Parts for pre-2014 models may have different mounting points than 2015+ models due to updated body designs.

What's the difference between chrome, stainless steel, and aluminum parts?

Chrome-plated steel parts offer the classic mirror finish but require regular polishing and can rust if the chrome chips. Stainless steel parts are more durable and corrosion-resistant but typically have a brushed finish rather than mirror shine. Aluminum parts are lightweight and won't rust but are softer and more prone to denting. For bumpers specifically, 16-gauge stainless steel provides the best balance of durability and appearance, while chrome works well for accent pieces that won't see heavy wear.

How difficult is installation, and what tools will I need?

Most bolt-on accessories like grille guards, visors, and fender guards can be installed in 2-4 hours with basic hand tools. You'll typically need metric and standard socket sets, torque wrenches, and drill bits for any new mounting holes. Bumper replacements require two people and may need frame modifications. Electrical components like LED lights require basic wiring knowledge. Professional installation is recommended for air ride suspensions, exhaust systems, or any modifications requiring cutting or welding.

Will aftermarket parts void my warranty or affect my truck's value?

Properly installed bolt-on accessories typically don't void warranties, but modifications that alter the frame, drivetrain, or emissions systems might. Keep all original parts if you plan to return to stock configuration. Quality aftermarket chrome and stainless parts from reputable manufacturers can actually increase resale value when properly maintained. Document all modifications with receipts and photos. Check with your dealer about specific warranty concerns before installing performance-altering components.

How do I maintain chrome and stainless parts in different climates?

In salt-belt states, rinse chrome parts weekly during winter and apply quality chrome polish monthly. Stainless steel requires less maintenance but benefits from periodic cleaning with stainless-specific products. In humid climates, apply a thin coat of WD-40 or chrome wax to prevent water spots and corrosion. Desert environments require UV protectant sprays to prevent fading. Avoid using abrasive cleaners or steel wool on any polished surfaces. For best results, hand-dry parts after washing to prevent water spots.

Steals & Deals Sign Up

Prefer to text? Receive exclusive deals by SMS*

Introducing the Official 4 State Trucks Mobile App – Gear Up On the Go!