Side Underride Guards for Semi-Trailers

Designed to protect vehicle occupants should a side collision occur.

Side Underride

Side Underride Devices – Guardian and AngelWing

      Semi-Trailer |   Flatbed

With over 1,000,000 miles of real-use road testing under our wheels, AngelWing underride guards have withstood everything we could throw at it, including:

  • Weather conditions including snow, ice, sand and other road debris,

  • No rattling, vibrations, or interference with the operation of the trailer, and

  • No issues to the structure of the trailer body, performance, or serviceability.

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See other official IIHS Video ►(Click Here)

AirFlow Deflector’s side underride impact guards are the only side guard safety devices successfully crash-tested six (6) times, including twice (2) by the Insurance Institute for Highway Safety (IIHS) proving that Passenger Compartment Intrusion (PCI) can be prevented at speeds of up to 40 mph.  This means that AirFlow has set the standard for side underride protection.

In Summary, 

  • Configurations include dry-box, reefer, flatbed, tanker and other specified trailers,

  • Sold in complete kits or by component,

  • Includes all hardware,

  • Limited lifetime warranty* and a full 60-day satisfaction policy,

  • Dynamic and modular design that moves with the trailer with no added tension or stress points,

  • Tested by most major trailer OEMs and by the Insurance Institute for Highway Safety (I.I.H.S),

  • Referenced specifically in the NTSHA Side Underride report (April 2023),

  • Road-tested with over 1,000,000 miles of real customer use without any reported damage, abnormalities or issues caused to the trailer**,

  • Mounts to existing cross members,

  • Weighing in at between 150 – 800 pounds, depending upon the configuration and desired force standard,

  • Installs in less than 2 hours, 2 people with no welding or specialized tools,

  • Integrates with most side skirts to maintain SmartWay / C.A.R.B certification,

  • Sold directly through AirFlow Deflector and affiliated dealerships,

  • Fleet/volume and “trial” pricing available,

  • North American sourced, manufactured and assembled, 

  • Fleet financing is available (O.A.C).

*  -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

Side Underride Device

Side Underride Device

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