Peterbilt 379 Rear Fenders

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Single Composite Rear Fender Set - Bad Ass Custom Truck PartsSingle Composite Rear Fender Set - Bad Ass Custom Truck Parts
Sale priceFrom $1,097 Freight Included
Single Composite Rear Fender Set
8 reviews
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Standard Bad Ass Full Fender Set - Bad Ass Custom Truck PartsStandard Bad Ass Full Fender Set - Bad Ass Custom Truck Parts
Sale price$1,897 Freight Included
Standard Bad Ass Full Fender Set
5 reviews
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Project Two Double Hump Rear Fender Set - Bad Ass Custom Truck PartsProject Two Double Hump Rear Fender Set - Bad Ass Custom Truck Parts
Sale price$1,997 Freight Included
Project Two Double Hump Rear Fender Set
20 reviews
Project One Double Hump Rear Fender - Bad Ass Custom Truck PartsProject One Double Hump Rear Fender - Bad Ass Custom Truck Parts
Sale price$1,997 Freight Included
Project One Double Hump Rear Fender
15 reviews
Project One Single Rear Fender Set - Bad Ass Custom Truck PartsProject One Single Rear Fender Set - Bad Ass Custom Truck Parts
Sale priceFrom $1,099 Freight Included
Project One Single Rear Fender Set
2 reviews
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Stealth Double Hump Rear Fenders - Bad Ass Custom Truck PartsStealth Double Hump Rear Fenders - Bad Ass Custom Truck Parts
Sale priceFrom $1,997 Freight Included
Stealth Double Hump Rear Fenders
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Single Fender 22.5" Super Lo Pro or 19.5" - Bad Ass Custom Truck PartsSingle Fender 22.5" Super Lo Pro or 19.5" - Bad Ass Custom Truck Parts
Sale priceFrom $1,099 Freight Included
Single Fender 22.5" Super Lo Pro or 19.5"
1 review
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Single Fender with Light Box - Bad Ass Custom Truck PartsSingle Fender with Light Box - Bad Ass Custom Truck Parts
Double Hump Fender with Wide Stainless Strips - Bad Ass Custom Truck PartsDouble Hump Fender with Wide Stainless Strips - Bad Ass Custom Truck Parts
Sale priceFrom $2,998 Freight Included
Double Hump Fender with Wide Stainless Strips
1 review
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Save $548
Slow Ride Full Fender Set - Bad Ass Custom Truck Parts
Sale priceFrom $1,349 Regular price$1,897 Freight Included
Slow Ride Full Fender Set | Custom Semi Truck Rear Fenders
No reviews
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Super Single Rear Full Fender Set - Bad Ass Custom Truck PartsSuper Single Rear Full Fender Set - Bad Ass Custom Truck Parts
Sale priceFrom $1,897 Freight Included
Super Single Rear Full Fender Set
1 review
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Super Single Double Hump Rear Fender Set - Bad Ass Custom Truck PartsSuper Single Double Hump Rear Fender Set - Bad Ass Custom Truck Parts
Sale priceFrom $1,997 Freight Included
Super Single Double Hump Rear Fender Set
1 review
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Euro Double Hump Rear Fender Set - Bad Ass Custom Truck PartsEuro Double Hump Rear Fender Set - Bad Ass Custom Truck Parts
Sale priceFrom $1,997 Freight Included
Euro Double Hump Rear Fender Set
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Elite Double Hump Rear Fenders - Bad Ass Custom Truck PartsBajito Double Hump Rear Fenders - 7.5" Sidewall - Bad Ass Custom Truck Parts
Sale priceFrom $1,997 Freight Included
Elite Double Hump Rear Fenders
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Conventional Double Hump Rear Fender Set - Bad Ass Custom Truck PartsConventional Double Hump Rear Fender Set - Bad Ass Custom Truck Parts
Sale priceFrom $1,997 Freight Included
Conventional Double Hump Rear Fender Set
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Camello Double Hump Rear Fender Set - Bad Ass Custom Truck PartsCamello Double Hump Rear Fender Set - Bad Ass Custom Truck Parts
Sale priceFrom $1,997 Freight Included
Camello Double Hump Rear Fender Set
1 review
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Bajito Double Hump Rear Fenders - Bad Ass Custom Truck PartsBajito Double Hump Rear Fenders- Bad Ass Custom Truck Parts
Sale priceFrom $1,897 Freight Included
Bajito Double Hump Rear Fenders
1 review
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Peterbilt 379 Rear Fenders

Peterbilt 379 Rear Fiberglass Fenders

Upgrade your truck with premium Peterbilt 379 rear fiberglass fenders engineered specifically for durability, clean body alignment, and long-term road performance. Whether you’re replacing cracked OEM components or completing a full custom build, our rear fenders for the Peterbilt 379 are designed for direct fitment and professional results.

Our 379 rear fenders are manufactured using reinforced fiberglass construction that delivers strength without unnecessary weight. Compared to steel or factory plastic alternatives, fiberglass offers improved corrosion resistance, easier repairability, and a smooth surface ideal for paint matching. These features make fiberglass the preferred choice for owner-operators, fleets, and show truck builders alike.

Designed for Direct Fit – Peterbilt 379 Compatibility

Each Peterbilt 379 rear fender is built to align with factory mounting configurations and common suspension setups. Proper fitment ensures clean wheel clearance, stable installation, and a consistent body line that complements the 379’s classic profile.

Before ordering, confirm:

• Model year of your Peterbilt 379
• Rear suspension and wheelbase configuration
• Mounting hardware compatibility

If you’re unsure, our team can assist in confirming the correct 379 rear fender option for your truck.


Why Choose Fiberglass Rear Fenders for Your 379?

Heavy-duty trucks demand components that withstand highway debris, weather exposure, and long-haul conditions. Our Peterbilt 379 fiberglass rear fenders are designed for:

• Impact resistance against road debris
• Reduced corrosion compared to steel
• Lightweight performance without sacrificing strength
• Smooth finish for custom paint applications
• Long service life under daily use

These rear fenders are ideal for both working trucks and high-end custom builds.


Complete Your Setup – Front & Rear Packages Available

Many Peterbilt 379 owners choose to upgrade both front and rear fenders at the same time to maintain a consistent look and streamline installation. Pair your 379 rear fenders with matching front fenders to create a cohesive, professional finish.

Explore our full selection of:

• Peterbilt 379 front fenders
• Complete 379 front and rear fender packages
• Replacement fiberglass fenders for classic Peterbilt models


Fast Shipping & Reliable Support

All Peterbilt 379 rear fenders are carefully packaged for secure freight shipping. Tracking is provided, and commercial delivery options are available. We prioritize safe transport so your fenders arrive ready for prep, paint, and installation.


If you're looking for high-quality, direct-fit Peterbilt 379 rear fiberglass fenders, built for performance and long-term durability, you're in the right place. Browse the collection below and upgrade your 379 with confidence.


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