Freightliner CAS 113/125 Half Fenders

Frequently Asked Questions About Freightliner CAS 113/125 Half Fenders

What are half fenders and will they fit my Freightliner Columbia (CAS) 113 or 125?

Half fenders are the curved panels that mount over the rear drive wheels of your truck, covering the top portion of the tires to help block road spray, mud, and debris. These half fenders are designed specifically for the Freightliner Columbia CAS 113 and 125 chassis, so they are built to match the factory mounting points and wheel well contours on those models. Because trim levels and axle configurations can vary, it is a good idea to confirm your specific chassis setup and axle spacing before ordering.

What materials are these half fenders made from, and how do they hold up over time?

Half fenders for this application are typically offered in materials such as steel, aluminum, or heavy-duty poly/composite construction, depending on the specific product listed. Steel and aluminum options tend to offer more rigidity and a traditional look, while poly fenders resist denting and corrosion. Check the individual product listing for the exact material and any protective coating or finish, since durability and maintenance needs differ between materials.

Do these half fenders come pre-finished, or will I need to paint or coat them?

This depends on the specific fender you choose. Some are sold with a raw, unpainted, or mill finish that you can paint or coat to match your truck, while others may come with a factory finish such as a powder coat, galvanized coating, or diamond plate texture. Be sure to review the product description and images closely to know what finish, if any, is included before you buy.

What hardware or brackets do I need to mount these half fenders?

Half fenders generally require mounting brackets, hardware, and sometimes fender flares or braces to attach securely to the frame or fender liner. Some listings include the necessary mounting hardware and brackets, while others are sold as the fender panel only. Review the product details to see exactly what is included in the box so you can plan ahead for any additional brackets or fasteners you may need to purchase separately.

How difficult is it to install half fenders, and can I do it myself?

Installation difficulty varies based on whether your truck already has fender brackets in place or if you are replacing a damaged fender versus adding fenders for the first time. Many drivers and shop technicians install half fenders using basic hand tools by bolting the fender to existing brackets or mounting points, but if your setup requires new brackets or drilling, the job becomes more involved. If you are not comfortable with metal fabrication or drilling into the frame, having a qualified truck accessory shop handle the install is a reliable option.