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Make your ride stand out with our Peterbilt 379 fairing and step selection, including fiberglass sleeper side extenders. Don't wait any longer; get started on your truck's upgrade today.

Peterbilt 379 Fairings & Steps

Upgrading your Peterbilt 379 with aftermarket fairings and steps isn t just about looks it's about performance, safety, and functionality. Whether you're replacing worn-out parts or customizing your rig, our in-stock fairings and step assemblies are built to handle the demands of heavy-duty, commercial truck use. These components are more than just side trim they help you get in and out of your cab safely, improve aerodynamics, and protect vital areas of your truck's frame and fuel system. Pair these parts with aftermarket fuel tank fairings for an even greater aerodynamic boost.

Why Peterbilt 379 Fairing Steps Matter

- Reduce drag: Side fairings help improve airflow, which can boost fuel efficiency over long hauls. - Protect your truck: Fairings guard your cab and chassis from road debris, water spray, and grime. - Complete the look: Fiberglass and stainless steel options help you create a polished, professional appearance. - Customize your build: Available in smooth paint-ready or chrome finishes for a personalized touch.

The Benefits of Adding Fairing Steps to Your Semi Truck

- Safe cab entry and exit. Wide step surfaces, anti-slip grip, and reinforced construction help reduce accidents. - Specifically designed for daily use. Whether you're climbing in and out all day or making quick deliveries, a good set of semi truck steps makes all the difference. - Match your frame and fairings. Many step assemblies are designed to blend in seamlessly with fairings or step box mounts. We often stock quality aftermarket Peterbilt 379 steps and side fairings, from lightweight fiberglass panels to heavy-duty aluminum step kits. All are built to OEM specs or better for a clean fit, easy install, and long-haul durability. This is a great way to start converting your Peterbilt 379 day cab alongside additional cab-related components. Shop now and give your Peterbilt 379 a functional upgrade that adds style, safety, and value. Let your truck work better and look even better doing it.

Frequently Asked Questions About Peterbilt 379 Fairings & Steps

Will these fairings and steps fit my specific year Peterbilt 379?

Most aftermarket fairings and steps for the Peterbilt 379 are designed to fit models from 1987 to 2007. However, there can be variations between early models (1987-1995) and later models (1996-2007), particularly in mounting hole patterns and bracket designs. Always verify the specific year range listed for each product, and when in doubt, contact us with your VIN number so we can confirm proper fitment for your truck.

What materials are used in these fairings, and how durable are they?

Quality fairings are typically made from either fiberglass or ABS plastic. Fiberglass options offer excellent durability and are easier to repair if damaged, while ABS plastic fairings are lighter weight and more resistant to cracking from vibration. Both materials can withstand highway speeds and weather conditions when properly installed. Look for fairings with UV-resistant gel coat or paint to prevent fading and chalking over time.

Can I install these fairings and steps myself, or do I need professional help?

Most fairings and steps can be installed by someone with moderate mechanical skills and basic tools. Typical installation requires drilling mounting holes (if not pre-existing), basic hand tools, and 2-4 hours of time. Step installations are generally straightforward bolt-on procedures. However, full fairing kits may require cutting or modification for proper fitment, especially around exhaust stacks or custom accessories. We recommend having a helper for larger fairing pieces to ensure proper alignment during installation.

What finish options are available, and can I paint them to match my truck?

Fairings typically come in three finish options: raw (unpainted), primed, or painted. Raw fiberglass requires primer and paint before installation. Primed options are ready for your choice of topcoat. Pre-painted fairings usually come in standard colors like white, black, or chrome. All fiberglass and ABS fairings can be painted using automotive-grade paints, but proper surface preparation is crucial for paint adhesion. Many customers choose to have them professionally painted to match their truck's color scheme.

How do fairings affect fuel economy and are they worth the investment?

Properly designed cab and chassis fairings can improve fuel economy by 3-7% at highway speeds by reducing aerodynamic drag. The actual savings depend on your driving habits, speeds, and routes. For trucks that spend significant time at highway speeds, the fuel savings can offset the initial cost within 12-18 months. Additionally, fairings protect your frame and components from road debris and moisture, potentially reducing maintenance costs over time.


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