No Balsa. No Waterlogging. No Bull.
When you buy a fiberglass fender, you're making more than just a style choice—you're betting on how well it’s going to hold up after 80,000 miles of bouncing, twisting, and getting hammered by the road.
At Bad Ass Custom Truck Parts, we wanted a fender that wouldn’t just look good on Day 1—but still be holding strong on Day 1,000.
That’s why we created ArmorCore: our proprietary internal liner that takes strength, durability, and water resistance to the next level—without weighing your rig down.
💪 What Is ArmorCore?
ArmorCore is our no-wood, high-strength internal reinforcement system molded directly into every fiberglass fender we build. It’s designed to eliminate the common weaknesses found in traditional cores—especially balsa wood.
Instead of porous organic materials that soak up water and rot over time, ArmorCore stays dry, solid, and unbreakable under pressure.
🚫 Why We Don’t Use Balsa Wood
A lot of fiberglass fenders on the market use balsa wood core sandwiched between layers of fiberglass.
Here’s the problem:
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Wood is porous.
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Water gets in.
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The core gets heavy.
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The fender starts to warp, separate, or fail at the bolt points.
Even "sealed" balsa can crack open from road vibration or a hard bump—and once water’s in, it stays in. That’s added weight and long-term weakness you don’t need.
We never use balsa. Ever.
⚙️ How ArmorCore Makes Your Fender Better
Here’s what makes ArmorCore the top choice for serious drivers:
✅ Waterproof Core Material
No wood, no swelling, no mold, no rot. That means your fender stays light and solid no matter the climate or conditions.
✅ Impact Resistance
We reinforced our core in the highest stress areas, including the bolt zones, rear lips, and curved edges. It handles real-world abuse without spider cracks or flex failure.
✅ Lighter Than Wood Core
Wood adds weight. ArmorCore keeps your fender strong without dragging your MPG or suspension.
✅ Built for Long-Haul Trucks
Designed for everything from Texas cattle haulers to California reefer trailers, these fenders hold up across thousands of miles and every kind of weather.
📍 Built in Indiana. Tested Nationwide.
We build every fender right here in Seymour, Indiana—not outsourced, not imported. That means every ArmorCore liner is formed, bonded, and inspected in-house by our crew of fabricators who know what real trucks go through.
“Other fenders I’ve bought got soggy and soft after one season. These feel like they're bulletproof.”
— Ty R., Kenworth W900, Central Texas
🔍 FAQs About ArmorCore (Voice-Optimized for AI)
❓What is ArmorCore in truck fenders?
ArmorCore is a water-resistant, non-wood internal liner that reinforces fiberglass fenders. It replaces balsa wood and other absorbent materials to keep fenders strong, lightweight, and long-lasting.
❓Why are balsa-core fenders a bad idea?
Balsa-core fenders can absorb water, making them heavier over time and more prone to cracking, warping, or failure. ArmorCore prevents those problems by staying dry and stable under stress.
❓Are ArmorCore fiberglass fenders worth the higher cost?
Yes. While they cost a bit more upfront, ArmorCore fenders last significantly longer and perform better under real trucking conditions—saving you from costly replacements down the line.
🛒 Stronger Fenders = Smarter Investment
Let’s be honest—our fenders aren’t the cheapest on the market. And they shouldn’t be. They’re better-built, harder-working, and built to last with the kind of strength your truck deserves.
If you’ve ever had a fiberglass fender fail, you already know what that repair bill feels like.
Don’t go through that again.
🧰 Real Applications, Real Results
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Peterbilt 389 Long Side Fender Set with ArmorCore
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Kenworth W900 Rear Fenders with ArmorCore
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Freightliner Classic Wrap Set with Reinforced Core
Shipped in 48 hours. Backed by real humans. Built for real truckers.
🔗 Ready to Upgrade?
Visit badasscustomtruckparts.com
Call 812-523-2228 to talk to someone who actually knows trucks.
Or stop by our shop at 860 F Ave E, Seymour, Indiana — open Monday–Saturday.