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

Truck > Fire/Rescue > ULTIMAAX Fire


48K-65K Fire/Rescue Rubber Suspension

Hendrickson has employed the latest engineering advancements and expertise to develop the ULTIMAAX® 48K – 65K rubber suspension, designed specifically for the fire and rescue market.  The integration of Hendrickson's proven walking (equalizing) beam technology, with its patented progressive rate spring, provides a balance of loaded stability and unloaded ride quality.


Sales Literature

Parts Lists


  • Recommended for fire / rescue applications
  • Superior ride results in reduced road shock and vibration to the vehicle, which
    contributes to longer service life of the cab, chassis and body equipment
  • No lubrication requirements
  • Progressive load springs provide long service life and are easy to replace
  • Bar pin end bushings designed to extend service life and reduce re-bush time
  • Comprehensive technical support and training available
  • Optimized design to balance robust durability and weight savings
  • Progressive rate springs provide a unique balance of unloaded ride quality and loaded stability
  • Fabricated walking-beam design equalizes axle loading while providing optimal clearance, axle travel and weight
  • Capacities up to 65,000 lbs.