AirFlow Deflector Side Underride Guards for Semi-Trailers

Compatible with most fuel-saving truck skirts

Designed to protect vehicle occupants if a side collision occurs

Side Underride

      Semi-Trailer |  Flatbed |  Tanker

Side underride guards, also known as lateral protective devices (LPDs), are designed to prevent pedestrians, cyclists, and motorcyclists from being swept under a large vehicle’s rear wheels in a side-impact collision. They are typically mounted on the sides of trucks between the axles.

Purpose:

– Prevent Underride:

The primary function is to prevent vulnerable road users from being caught under the wheels of a large truck in a side impact crash

– Reduce Injuries and Death:

By prevening underride, these guards can help reduce the severity of injuries and fatalities in side-impact collisions.

– How they work:

Side underride guards act a physical barrier, preventing pedestrians, cyclists, and motorists from being swept under the wheels.  They are designed to deflect these vulerable users away from the truck’s rear wheels. 

With over 1,000,000 miles of real-use road testing under our wheels, our Semi-Trailer side guard systems have withstood everything the road can throw at it.

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See other official IIHS Video ►(Click Here)

AirFlow Deflector’s side underride impact guards are among the only side guard systems to have undergone six successful crash tests, including two conducted by the Insurance Institute for Highway Safety (IIHS). These tests, which simulated collisions at speeds up to 40 mph, demonstrated that AirFlow’s system effectively prevented Passenger Compartment Intrusion (PCI).

These successful crash test results align with the proposed standards for side underride protection devices outlined in the Side Underride Act currently under consideration by the US Congress.

Truck Side Guards

Fleet, OEM or need information?

In Summary, 

Enhance Trailer Safety & Efficiency with AirFlow Deflector”

  • Versatile Configurations:

    • Fits dry vans, reefers, flatbeds, tankers, and more,

    • Various lengths to suit all trailer configurations,

    • Configurable height ranging between 18 – 27″ from the ground,

    • Modular by design.

  • Proven Safety:

    • IIHS-tested & NTSHA-referenced for side underride protection.

    • Over 1,000,000 miles of real-world use with zero reported damage.

  • Easy Installation:

    • Mounts to existing cross members.

    • Installs in under 2 hours with minimal tools.

  • Durable & Reliable:

  • Improved Aerodynamics:

    • Integrates with most side skirts for compliance.

  • Convenient & Affordable:

    • Available directly through AirFlow Deflector & distributors nationwide.

    • Fleet/volume & “Trial” pricing options.

    • Fleet financing is available.

  • Sourced, manufactured and assembled in North America.

*  -Original owner/original truck only,
-Covers defects in material and workmanship under normal use,
Warranty does not cover damage due to road hazards or misuse,
Contact AirFlow Deflector for details.
**  When properly installed as per AFD guidelines