The new Kenworth AG210L single-axle and Kenworth AG400L tandem-axle rear suspensions are now available for order on Kenworth medium duty models. The Kenworth AG210L is a 21,000-lb. rated highway rear suspension for Kenworth T270 Class 6 and T370 Class 7 models. The two-bag, rear air suspension features a proven trailing arm design and provides a smooth ride. The disc brake-compatible Kenworth AG400L is a 40,000-lb. rated highway rear air suspension system. The cost-effective, four-bag suspension provides a smooth ride through a proven trailing arm design.