Builder of Truck Side Guards

Truck Side Guards

Side guards

AngelWing™, the only side guard sucessfully tested by the Insurance Institute for Highway Safety (IIHS)

¤ Watch the official IIHS test videos:

Official IIHS test video – March 30, 2017

Official IIHS test video – August 2017

AirFlow Deflector’s Angel Wing™ Side Underride Device

 The IIHS tests AngelWing, twice:

Strong underride guards on the rear of tractor-trailers have been proven to be an effective prevention in underride in crashes, according to tests conducted by the Insurance Institute for Highway Safety. 

Now, new IIHS tests show how a well-built side guard can prevent a passenger vehicle from sliding beneath the side of a semitrailer.

Three test, conducted in March and August 2017, marked the first time that IIHS has evaluated side underride guards at speeds of 35 and 40-mph. 

Tests involved three separate crashes:  Two tests involved AirFlow Deflector’s “AngelWing”  and the third test was conducted without any side guard but used a fiberglass side skirt, intended only to improve fuel consumption and aerodynamics.  The results were dramatically different.

Now, a few months later, a comprehensive bi-partisan bill has been presented to Congress that requires mandatory side underride guards as standard equipment on semi-trailers …


 The IIHS tests AngelWing, twice:

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airflow deflector“220” rail and “440” panel shown

Rails  or Panels

Compliant* to meet all “Volpe” standards

* 440 side guard systems

Truck side guards by AirFlow Deflector offer lateral protection for pedestrians, cyclists, and motorcyclists, in the event of a side collision with large city trucks. 

Truck side guards are a barrier between the vulnerable road user and the space between the front and rear wheels of large city trucks.

Starting at $425.00 per side, Truck side guard kits are available in either full panels or rail systems and are sold by length and strength/force/deflection levels, with most meeting current “Volpe” standards.  This is the amount of energy that is absorbed before the guards distort or break.

Our impact guards are removable and/or retractable in seconds, allowing full access to the underside of the trucks.



“Saving Lives, One Safer Truck at a Time”

AngelWing™  side impact guards offer side underride protection to vehicle passengers in the event of a collision between a passenger car and the sides of large trucks or semi-trailers. 

AngelWing™  side guards form a protective shield or barrier between the vulnerable road user and the space between the front and rear wheels (underride) of large city trucks.  Side guards work by engaging the vehicle’s  current safety features like airbags, seat belts, and anti-crash avoidance systems and prevents the vehicle coming into and from going under the trailer.

Fully tested by the Institute for Highway Safety (IIHS) and certified by AirFlow Deflector, passenger compartment intrusion (CPI) is prevented when a side crash occurs at speeds of up to 40 mph. 

Side Underride Device



“It’s What’s Behind this Skirt that Saves Lives.” ™

Truck Side Guards Lateral protection devices rail side guards panel side guards