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Air Pillows

Trailer air springs for semi-trailers

Trailer air springs are the rubber bellows in a semi-trailer’s air suspension. They carry the load and set the correct ride height. Because a worn bellows affects handling and tyre wear, timely replacement keeps the trailer stable and safe. The right unit depends on the axle make, such as KRONE, SAF or BPW. Therefore, always match the OEM reference before ordering.

Air springs — frequently asked questions

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What is a trailer air spring? It is the rubber bellows in an air suspension system. Because it carries the load and sets ride height, a worn unit affects handling and tyre wear.

How do I choose the right one? First, identify the axle make and model. Then match the OEM reference, because bellows vary between makers such as KRONE, SAF and BPW.