Need Help? Call 1-855-RIDE-RED or Email webmaster

Truck > On-Highway > AIRTEK®


Integrated Front Air Suspension and Steer Axle System

Save up to 97 pounds with AIRTEK. With a unique design that provides increased stability, improved ride and comfort, and reduced maintenance, AIRTEK is the industry’s first front air suspension and steer axle system. Combined with Hendrickson’s STEERTEK™ NXT axle, AIRTEK can offer up to 97 pounds of weight savings over standard suspensions for applications rated between 12,000 – 14,000 pounds.


Sales Literature

Parts Lists


17730-243 AIRTEK · STEERTEK NXT for Freightliner · Western Star · Sterling Tech Procedure REV F10/199Mb 17730-247 AIRTEK - Volvo Tech ProcedureREV G07/127.5Mb 17730-250 AIRTEK - Mack Tech ProcedureREV D07/127.3MB 17730-252 STEERTEK NXT · SOFTEK · AIRTEK International Truck Tech ProcedureREV G09/198.9 Mb 17730-236 AIRTEK Freightliner Vehicles Pre-delivery Inspection and Preventive MaintenanceREV B12/13294kb 17730-313 AIRTEK for Hoist Liftruck T-SeriesREV A03/195.3MB SEU-0102 STEERTEK NXT/STEERTEK Axle Technical Bulletin Towing ProcedureREV C09/11346 KB SEU-0211 AIRTEK Technical Bulletin New Height Adjustment ProcedureREV A01/02111 KB SEU-0215 AIRTEK Bulletin-Freightliner/Sterling/Western Star VehiclesREV A07/04120k SEU-0220 AIRTEK Bulletin-Volvo Dual Height Control ValvesREV A04/05209k SEU-0223 STEERTEK NXT/STEERTEK Tie Rod Assemblies & Ends Technical Bulletin REV E07/20222kb SEU-0224 AIRTEK Technical Bulletin-Mack Dual Height Control ValvesREV A02/06195k SEU-0226 AIRTEK Technical Bulletin for Volvo HCV and Air Spring AssemblyREV A08/06245k SEU-0227 STEERTEK Bulletin-Unauthorized Axle Camber ModificationsREV A06/11263kb 59310-011 Kingpin Bushing Service Kit Assembly InstructionsREV E05/20386 kB 59310-017 STEERTEK NXT · STEERTEK Thrust Bearing Service Kits Assembly InstructionsREV C05/20358 KB 59310-026 AIRTEK for Volvo Dual HCV Ass'y InstructionsREV A01/06523k 59310-030 AIRTEK-Mack Dual HCV Assembly InstructionsREV A04/06445k 59310-034 AIRTEK Freightliner and Sterling Dual HCV Assembly InstructionsREV C07/09345k 59310-044 AIRTEK for Volvo Vehicles Equipped with U-bolt Clamp Group - Steering Stabilizer Kits REV B04/10215k 59310-053 AIRTEK Assembly Inst. for International Vehicles Equipped - Steering Stabilizer Kits REV A08/11423k 59310-065 AIRTEK for Freightliner Vehicles built prior to May 2016REV C12/17545kB 59310-066 Steering Stabilizer Kit AIRTEK for Volvo VehcilesREV A05/17394kB

Driver Comfort

  • Air springs support the majority of the vehicle load while providing low spring rate and extremely soft ride.
  • Premium shock absorbers are tuned specifically for AIRTEK.

Stability and Handling

  • Integrated design allows optimized steering geometry for reduced bump steer and wheel kick.
  • The rigid front leaf spring attaches securely to the box section axle, forming a torsion system for enhanced roll stability.
  • AIRTEK and STEERTEK NXT deliver up to 50° wheel cut for improved maneuverability.
  • Height control valve maintains constant ride height.


  • AIRTEK offers up to 97 lbs. of weight savings when compared to a traditional forged axle and steel spring.

Maintenance and Durability

  • Premium kingpin bushings and seals provide enhanced protection from the elements to improve bushing life.
  • Maintenance-free bushings and the two-piece knuckle reduce overall system maintenance.
  • Air springs reduce vibration to cab, chassis, and engine components.
  • Available OEM unitized hubs for extended wheel bearing life.

Brake Compatibility

  • Compatible with drum or disc brakes.
  • Accepts both 5/8" and 3/4" brake hardware.