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Trailer air system parts for semi-trailers

Trailer air system parts are the pneumatic valves, fittings and controls that route compressed air on a semi-trailer. They feed the brake and suspension systems and keep the unit working safely. Because these components wear or leak over time, timely replacement prevents air loss and downtime. The right item depends on the trailer make and system, such as KRONE, SAF or BPW. Therefore, always match the OEM reference before ordering.

Air system — frequently asked questions

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What do these components do? The valves, fittings and controls route compressed air. Because they feed the brake and suspension systems, a leak causes air loss and downtime.

How do I choose the right one? First, identify the trailer make and system. Then match the OEM reference, because these items vary between makers such as KRONE, SAF and BPW.