Frequently Asked Questions About Freightliner Cascadia 113/125 Front Fenders & Acc.

Will these fenders fit my specific Cascadia model year, and what's the difference between 113 and 125 compatibility?

Most aftermarket fenders are designed to fit Cascadia models from 2008-2017, with separate parts for the 2018+ New Cascadia models. The 113 and 125 refer to the BBC (Bumper to Back of Cab) measurement - both use the same fender design, but mounting brackets may vary slightly. Always verify your truck's VIN and model year before ordering, as pre-2008 and post-2018 models have different mounting points and aerodynamic features.

What's the real difference between OEM and aftermarket fender quality, and will aftermarket fenders crack or warp?

OEM fenders are made from virgin ABS plastic with UV inhibitors, while quality aftermarket options use similar materials but may have 10-20% recycled content. The main differences are in finish quality and longevity - aftermarket fenders typically last 5-7 years versus 8-10 for OEM. Look for fenders with a minimum 3/16" thickness and UV protection. Avoid the cheapest options as they often lack proper reinforcement ribs and can develop stress cracks around mounting points within 2-3 years.

Can I install these fenders myself, and what tools or additional parts will I need?

Installation typically takes 2-3 hours per side for experienced mechanics, or 4-5 hours for DIY installers. You'll need basic hand tools, a drill with metal bits, and ideally an air ratchet. Most fenders come with mounting hardware, but you may need to purchase separately: fender brackets (if damaged), rubber mounting grommets, stainless steel bolts for corrosion resistance, and fender flares or mud flaps. Some installations require minor drilling or trimming for perfect fitment.

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

Fenders come in three main finishes: raw black plastic (paintable), gel-coated white, and chrome-style ABS. Raw plastic fenders require proper prep work - cleaning, adhesion promoter, and flexible primer before painting. Gel-coated options provide a glossy finish but can be challenging to color-match. For best results with custom colors, choose raw plastic fenders and have them professionally painted using automotive flex additives to prevent cracking.

Do these fenders include mounting brackets and lights, or are those sold separately?

Most replacement fenders are sold as the shell only - brackets, lights, and reflectors are typically separate purchases. OEM-style complete assemblies are available but cost 40-60% more. When budgeting, factor in: mounting brackets ($50-100 per side), LED marker lights ($20-40 each), reflectors ($10-15 each), and any wiring harnesses. Some vendors offer complete kits that include all components, which can save money versus buying parts individually.