Hendrickson Truck Commercial Vehicle Systems
Primaax Ex
Primaax Ex
Primaax Ex
Primaax Ex
Primaax Ex

Peterbilt launches Hendrickson PRIMAAX EX

Aug. 23, 2023
Peterbilt vehicles will now feature Hendrickson's PRIMAAX EX suspension on model 567, 579, and 589 chassis.

Hendrickson Truck Commercial Vehicle Systems, a manufacturer and supplier of medium and heavy-duty vehicle systems, has partnered with Peterbilt to offer PRIMAAX EX, the severe-duty vocational air suspension system, as a part of the chassis enhancements for the Peterbilt  567, 579 and 589 models. PRIMAAX EX will be available in capacities of 46,000 and 52,000 lbs., have a 10-in. ride height, and is compatible with drum and air disc brakes. 

Read more:  Hendrickson launches HAULMAAX EX system for Freightliner

“We are excited to partner with Peterbilt to expand the availability of PRIMAAX EX across the full breadth of their vocational model lineup to bring the tremendous advantages of PRIMAAX EX to more Peterbilt customers,” said Sean Whitfield, director of marketing at Hendrickson Truck Commercial Vehicle Systems. 

The PRIMAAX EX suspension system features a robust structural design that incorporates optimized suspension geometry, which helps minimize driveline vibrations, control suspension windup, and corresponding frame rise. The system’s heavy-duty rubber bushings also require no lubrication and are performance tested for longer service life. Finally, the suspension provides enhanced stability and handling for vehicles with heavy loads and high centers of gravity that can confidently negotiate tight turns with minimal sway.

PRIMAAX EX offers a full range of suspension scalability from 23,000-lb. single axle configurations up to 78,000-lb. tridem setup.