Peterbilt offering Hendrickson Primaax EX

by Today's Trucking

Peterbilt is now offering the Hendrickson Primaax EX severe-duty vocational air suspension on its 567, 579 and 589 models.

The suspension will be available in capacities of 46,000 and 52,000 lb., with a 10-inch ride height and compatibility with drum and disc brakes.

Hendrickson Primaax EX
(Image: Hendrickson)

“Peterbilt is excited to expand our partnership with Hendrickson by adding the Primaax EX to our suspension offerings,” said Jake Montero, assistant general manager – sales and marketing for Peterbilt.

Hendrickson says the suspension is suited for applications including construction, refuse, mixer, logging and heavy-haul.

“Primaax EX has grown tremendously in popularity over the years and has become widely accepted by fleets throughout the industry as their preferred 100% off-highway approved vocational air suspension for multiple severe-duty applications,” said Sean Whitfield, director of marketing at Hendrickson Truck Commercial Vehicle Systems.  


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  • I have 2005 chamber suspension and wanna up date to air ride. I’m interesting this new Hendrickson suspension.

    • Primax has been available since around 2005 aswell on / by certain Truck Manufacturers.. your Chalmers is a Good Non Air Ride Suspension .