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New Kenworth suspension shaves up to 400 lbs.

LOUISVILLE, KY. - Kenworth says its new AG380 air suspension weighs in at 650 pounds fully installed, a weight redu...


LOUISVILLE, KY. – Kenworth says its new AG380 air suspension weighs in at 650 pounds fully installed, a weight reduction of up to 400 pounds compared to similar trailing arm suspensions.

The new suspension can be spec’d on Kenworth’s complete Class 8 line of over-the-road tractors for highway applications – up to 80,000 pounds (GCW) – with full production slated for June.

In addition, Kenworth Chief Engineer Jim Bechtold says the Kenworth AG380 is lighter than most four-spring suspensions.

“Some extremely weight-conscious carriers will now be able to bypass the spring suspension and select the more comfortable air bag suspension for their drivers,” Bechtold says.

He notes that the AG380 received over two years of ride, handling, stability and durability testing on the road and in the lab before being brought to market.

The AG380’s key components also underwent the equivalent of 6 million miles of road service during quality testing conducted in the lab at the PACCAR Technical Center.

To increase reliability, Kenworth says it designed the AG380 with about half the parts of other truck suspensions. In addition, the new suspension is maintenance free with no lubrication points.


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