Peterbilt 330/335/337 Front Fenders & Acc.

Frequently Asked Questions About Peterbilt 330/335/337 Front Fenders & Acc.

Will these fenders fit my specific year model Peterbilt 330, 335, or 337?

Most aftermarket fenders for Peterbilt 330/335/337 models fit trucks manufactured from 2005 to 2015, though some universal options extend to 2018 models. The 330 and 335 share identical fender dimensions, while the 337 may require specific mounting brackets depending on your truck's configuration. Always verify your OEM and model year before ordering, as pre-2005 models use different mounting points and may require additional modifications.

What's the difference between fiberglass and steel fenders, and which should I choose?

Fiberglass fenders are lighter (typically 15-20 lbs each), more affordable, and resist rust, making them ideal for most applications. However, they can crack under severe impact and may require reinforcement around mounting points. Steel fenders weigh 35-45 lbs each, cost more, but offer superior durability for heavy-duty applications and better resistance to road debris. Choose fiberglass for standard highway use or steel if you frequently operate on construction sites or rough terrain.

Can I install these fenders myself, or do I need professional help?

Installation typically takes 2-3 hours per fender for experienced DIYers with basic tools including socket sets, drill bits, and mounting hardware. The process involves removing 6-8 bolts per fender, disconnecting any lights or accessories, and aligning new mounting holes. Common challenges include rusted bolts on older trucks and ensuring proper gap alignment with the hood. Professional installation runs $150-300 per fender but guarantees proper fitment and may be worth it if you lack experience or encounter fitment issues.

Do these fenders come painted or primed, and what prep work is needed?

Most aftermarket fenders arrive in black gel-coat (fiberglass) or e-coated primer (steel), requiring painting to match your truck. Fiberglass fenders need light sanding with 320-grit paper and a quality primer before painting. Steel fenders typically come with a gray or black primer that's paint-ready after cleaning. Budget $200-400 per fender for professional painting, or plan 4-6 hours for DIY prep and painting using automotive-grade materials.

What accessories and hardware come with the fenders, and what might I need to buy separately?

Standard fender packages include the fender shell and basic mounting brackets, but rarely include complete hardware. You'll typically need to purchase separately: mounting bolts (usually M8 or M10), rubber mud flaps, LED marker lights if upgrading, fender liners for added protection, and paint materials. OEM-style packages may include pre-drilled light holes and brackets, while universal options require more customization. Budget an additional $50-150 for complete mounting hardware and basic accessories per fender.