Front Fender Accessories for Peterbilt 330/335/337 Models
Front fenders take constant abuse from road spray, rocks, salt, and vibration. The right accessories help your truck stay safer, cleaner, and easier to maintain. They also prevent common issues like cracked edges, rust streaks, and lights that fail too soon.
Side Marker Fender Lights
These lights boost side visibility at the front wheel area. That helps during lane changes, turns, and low-light driving. A big pain point is lights that quit from water intrusion, weak mounts, or sketchy wiring. Quality LED marker lights and secure mounting help reduce flicker, water damage, and constant rewiring.
Fender Shields & Guards
Shields and guards reduce road spray, rock chips, and salt blast. They protect the fender edge where damage often starts. If you fight grime buildup or winter corrosion, this is one of the most practical upgrades you can add.
Fender Trim
Trim gives your fenders a finished look and adds edge protection. It helps prevent chipped edges and covers the areas where corrosion and cracking can begin. It also helps stop that âunfinished" look after a fender replacement.
Headlight Trim
Headlight trim keeps the front end looking consistent. It also helps reduce grime lines around the housings that are hard to clean. Itâs a simple way to match your front-end look with your fender trim.
Front Fender Liners
A fender liner shields the area behind the fender from water, salt, and debris. That helps protect wiring and reduces corrosion buildup. If you run wet routes or winter roads, a liner is a smart add-on.
Fender Blink Bar Brackets
These brackets give blink bars and lighting a secure mounting point. They help reduce vibration failures, rattles, and loose hardware. A proper bracket also helps prevent cracking from poor installs.
Rubber Fender Extensions
Rubber extensions add coverage to control spray and debris. They help keep steps and side panels cleaner and reduce mud and salt getting thrown forward.
Upgrade your Peterbilt 337 front end with fenders, trim, guards, liners, and lighting mounts that are built for real miles.
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.
