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AS0058

LIFTABLE AIR SUSPENSION BAG

This is a double convoluted air spring (air bag) used in liftable suspension systems on heavy-duty trucks. It supports the vehicle's weight and provides adjustable ride height by inflating or deflating. When the lift axle is not needed, the bag is deflated to raise the axle off the road, reducing tire wear and improving fuel efficiency. A worn or leaking air spring can cause sagging, poor ride quality, or failure to lift the axle, so it should be replaced promptly.