Maximize your rig with our full-radius semi truck fenders. These fenders offer excellent protection, improved performance, and enhanced style, designed to fit your truck perfectly. The complete radius design ensures a streamlined, modern look that complements your commercial truck's exterior appearance.
Shop for the Best Heavy Duty Semi Truck Fenders
Full rear fenders cover the entire top half of your tire in a smooth, rounded arc, offering a clean aesthetic to your truck's exterior. You can choose from various materials and styles, like paintable or polished aluminum or
quilted pattern durable stainless steel that offer a truly unique look to your truck. The long-drop fender styles can cover even more of your wheel and give some added protection from roadway spray. Full radius fender kits with light cutouts and various finishes, from a galvanized or carbon fiber finish to a premium liquid platinum finish.
Frequently Asked Questions About Semi-Truck Full Radius Fenders Universal
Will these universal full radius fenders fit my specific truck make and model?
Universal full radius fenders are designed to fit most standard semi-trucks including Peterbilt, Kenworth, Freightliner, Mack, and International models. However, the key measurement is your tire size and clearance. These fenders typically accommodate tires ranging from 22.5" to 24.5" wheels. Before ordering, measure from your tire's outer edge to the frame rail and ensure you have at least 2-3 inches of clearance. Some older models (pre-1990) or custom builds may require additional brackets or modifications.
What material options are available and which holds up best against road debris and weather?
Full radius fenders come in three main materials: 304 stainless steel, 430 stainless steel, and heavy-duty plastic/poly. The 304 stainless steel offers superior corrosion resistance and durability, ideal for harsh winter conditions and coastal areas. The 430 stainless is more budget-friendly but may show surface rust over time. Poly fenders are lightweight and won't rust, but can crack in extreme cold or from heavy impacts. For maximum longevity, 304 stainless with 16-18 gauge thickness is recommended.
How difficult is the installation and what tools or additional hardware will I need?
Installation typically takes 2-4 hours per fender for someone with basic mechanical skills. You'll need a drill with metal bits, wrenches, and possibly a grinder for fitting adjustments. Most universal fenders come with mounting brackets and hardware, but you may need additional L-brackets or spacers depending on your truck's configuration. Common challenges include aligning brackets on trucks with aftermarket suspensions or non-standard frame spacing. Having a second person helps significantly with positioning and holding the fender during installation.
What finish options are available and how do I maintain the appearance?
Stainless steel fenders come in mirror polish, brushed, or painted finishes. Mirror polish provides the classic chrome-like appearance but requires regular polishing to maintain. Brushed finish hides minor scratches better and needs less maintenance. Painted options include powder coating in black or custom colors. For maintenance, use stainless steel cleaner monthly on polished finishes, and avoid harsh chemicals or steel wool. Painted fenders should be waxed quarterly to prevent fading and chipping.
Do universal fenders affect fuel economy or create wind noise at highway speeds?
Properly installed full radius fenders have minimal impact on fuel economy - typically less than 1% difference. They're aerodynamically designed to channel airflow smoothly. Wind noise issues usually stem from improper installation, such as gaps between the fender and truck body or loose mounting hardware. Ensure all brackets are tight and use rubber edge trim where the fender meets the body to eliminate gaps. Some drivers report slight whistling above 65 mph, which can be resolved by adjusting the fender angle or adding foam tape to contact points.
