Frequently Asked Questions About Kenworth T700 Front Fenders & Acc.

Will these fenders fit my specific year model T700, and are there differences between model years?

Kenworth T700 fenders are generally compatible across model years 2010-2019, but there are important distinctions. Early models (2010-2012) may have slightly different mounting hole patterns compared to later years. Always verify your VIN and model year before ordering. Most aftermarket fenders are designed to fit 2013-2019 models universally, but hood-to-fender alignment can vary based on whether you have the aerodynamic package or standard configuration.

What's the actual difference between fiberglass and thermoplastic fenders in terms of durability and repair?

Fiberglass fenders are typically 20-30% less expensive upfront but are more prone to cracking from road debris and require professional repair when damaged. Thermoplastic (TPO) fenders cost more initially but offer superior impact resistance and can often be repaired with heat guns for minor damage. In cold climates, thermoplastic performs better as it remains flexible below freezing, while fiberglass can become brittle. Most fleet operators prefer thermoplastic for the lower lifetime cost despite the higher purchase price.

Do I need special brackets or hardware for installation, or can I reuse my existing mounting hardware?

Most replacement fenders can use your existing mounting brackets if they're in good condition. However, you'll typically need new mounting bolts, J-clips, and rubber well nuts (usually 8-12 per fender). Factory-style fenders use the OEM mounting points, while some aftermarket options may require drilling 1-2 additional holes. Budget an extra $30-50 for hardware if your current fasteners show corrosion or wear. Installation typically takes 2-3 hours per side for experienced mechanics.

Are painted fenders worth the extra cost, or should I get them painted locally?

Pre-painted fenders cost $200-400 more per piece but offer factory-quality paint with proper flex additives that resist cracking. Local body shops often charge $150-250 per fender but may not use commercial-grade paint designed for flexible surfaces. Pre-painted options also eliminate 3-5 days of downtime. If color matching is critical, order painted fenders using your truck's paint code for the best match. Raw fenders are only recommended if you're doing a complete truck repaint.

What fender accessories are actually necessary versus optional for proper installation?

Essential accessories include fender liners ($40-60 each) to prevent rust and road spray, and mudflap hangers if yours are damaged. Optional but recommended items include stainless steel bolt kits for corrosion resistance, fender gap seals to reduce wind noise, and LED marker lights if upgrading from incandescent. Skip decorative items like chrome trim until the basic installation is complete and properly aligned. Most drivers find that quality liners and proper sealing make the biggest difference in fender longevity.