Heavy Duty Semi Truck Rear Fenders

Heavy Duty Poly Full Fenders (Double Axle)
Heavy Duty Poly Single Axle Fenders
Heavy Duty Poly Half Fenders

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1-855-476-2627

(Talk to a product expert and buy direct)

Call to Order Now!

(Click Number to Call)

Talk to a product expert and order directly from Robmar.

Truck Fenders Made in Michigan

When you’re ready to protect your truck with a new set of fenders, first decide on the material you want to trust. Metal and fiberglass are expensive and vulnerable to cracks and dents, even from minor impacts.

Our plastic options offer many advantages over traditional materials. Some of the benefits of our poly systems include:

  • Affordable Pricing ✓
  • Lifetime Warranty Guarantee ✓
  • Protect and Keep Your Truck Clean ✓
  • Easy to Install, Universal Mounting Kits ✓
  • Super-Tough, UV Stabilized Poly Construction ✓
Single Axle Poly Truck Fenders from Robmar Plastics
Single Axle Poly Truck Fenders from Robmar Plastics

Robmar’s poly truck fenders are manufactured by vacuum thermoforming, right here in the USA.
Every part is made with premium, High Molecular Weight Polyethylene – the toughest material available.

3 Coverage Styles

With three different types of fender systems, we have something for nearly every application.

Single Axle

Provides the highest level of protection, covering each wheel individually.

Single Axle Fender System Coverage

Full Tandem

Cover both sides of 2 axles to protect the cab and trailer.

Full Tandem Fender System Coverage

Half Tandem

Cover half of one axle, protecting the cab and leaving the rear axle open.

Half Tandem Fender System Coverage
Single Axle Poly Fenders with 3 Axle Setup
Double Axle Full Truck Fenders
Silver Plastic Semi Truck Fender Pair with Double Single Axle Setup

“They look great and really save a lot of road spray and porch cleaning. Thanks for the great product.”

Dan H, Western Illinois

Over-Engineered Fender Brackets

Protection from debris and spray is great, but what good are fenders without an equally durable mounting kit to secure them to the truck? Robmar’s bolt-on, universal mounting hardware kits come standard with 1.875” powder-coated, steel tubes. Each tube has a robotically-welded, threaded plug for installation to the frame of your truck with the included mounting bolts.

We offer both straight and offset/bent tube kits. The straight tube kits are great for cost savings. Offset tube kits are the most popular version due to their added adjustability. The bend allows you to rotate the tube around, before it’s tightened down all the way, to achieve the best mounting position possible.

The tubes neatly fit into their tough, nylon hangers, which are designed to withstand shock and vibration that is almost guaranteed while on the road. Each fender is secured to the nylon hangers with an elevator bolt and custom plastic washer plate. The washer plate is designed to fit up into the rib and away from the tire.

Robmar Fender Brackets

Single axle systems use a tube on each side for support, while half and full tandem sets utilize our center bracket assembly for support between two tandem axles. The center support arm is made of extra-rigid HDPE for additional strength. This support arm connects to the steel swing arm with u-bolts for more adjustability.

Over-Engineered Fender Brackets

Protection from debris and spray is great, but what good are fenders without an equally durable mounting kit to secure them to the truck? Robmar’s bolt-on, universal mounting hardware kits come standard with 1.875” powder-coated, steel tubes. Each tube has a robotically-welded, threaded plug for installation to the frame of your truck with the included mounting bolts.

We offer both straight and offset/bent tube kits. The straight tube kits are great for cost savings. Offset tube kits are the most popular version due to their added adjustability. The bend allows you to rotate the tube around, before its tightened down all the way, to achieve the best mounting position possible.

The tubes neatly fit into their tough, nylon hangers, which are designed to withstand shock and vibration that is almost guaranteed while on the road. Each fender is secured to the nylon hangers with an elevator bolt and custom plastic washer plate. The washer plate is designed to fit up into the rib, to keep it up and away from the tire.

Single axle systems use a tube on each side for support, while half and full tandem sets utilize our center bracket assembly for support between two tandem axles. The center support arm is made of extra-rigid HDPE for additional strength. This support arm connects to the steel swing arm with u-bolts for more adjustability.

Robmar Fender Brackets

Durable Fenders for Trucks

Being a truck driver isn’t an easy job. You’ve got to by physically and mentally tough to handle it. It’s your responsibility to protect yourself from injury and your equipment from damage. Every driver knows that there is nothing worse than when your tire slings up a piece of road debris that messes up your paint job or when your freshly washed truck gets covered with road spray.

Our poly truck fenders are designed to block high-velocity road debris before they can become a problem. There’s also the added benefit of shielding other vehicles on the road from spray and debris that your truck might be throwing around. Anything can happen out on the road, which is why our ribbed design provides not only an attractive look, but an added element of strength and rigidity.

Red Single Axle Poly Fenders
Red Single Axle Poly Fenders

It’s important to get the right type of protection on your truck as quickly as possible. This is why we sell direct to consumer over the phone or online through this website. We can only deliver to commercially zoned business addresses with a fork-lift or loading dock to accept the order. Find out more about delivery location requirements by clicking here.

“The mounting brackets are user friendly and much more sturdy than others I have seen. Great product!”

David Boots Construction, Eastern Iowa

A Lifetime Warranty that Doesn’t Quit

We’re so confident in the design of our product and the high molecular weight polyethylene used to vacuum form it, that all purchases come standard with Robmar’s Lifetime Warranty. You can buy with confidence knowing that you’re not doing business with a company that just ‘sells it and forgets it.’

Your purchase is protected against any major cracks, dents, or tears for the useful life of the product. Make sure to keep your receipt to receive prompt warranty service if it’s ever needed!

For more information about the terms and conditions of the warranty, please click here.

Robmar Lifetime Warranty on Fenders
Full Tandem
Single Axle
Half Fenders