Trailer Spareparts
What trailer spare parts do semi-trailers need?
Trailer spare parts are the replacement components that keep semi-trailers safe and roadworthy, and they cover the braking, suspension and air systems of heavy trailers. Because a semi-trailer relies on air brakes and air suspension, the most common parts are brake discs, air springs, shock absorbers, spring brake actuators, ABS components and pneumatic valves. In addition, these parts wear with mileage and load, so timely replacement keeps the trailer compliant and reduces downtime. Therefore, the right part depends on the trailer make — such as KRONE or SAF — the axle and the system fitted, which is why matching the OEM reference is important.
Trailer spare parts categories
Because trailers use several systems, the table below groups the main part types and what they do.
| Category | Component | Function |
|---|---|---|
| Brakes | Brake discs and parts | Stopping power for the trailer axle |
| Air Pillows | Air springs / bellows | Air suspension cushioning and ride height |
| Amortizators | Shock absorbers | Damp suspension movement and load bounce |
| Energoakumulators | Spring brake actuators | Apply the parking and emergency brake |
| ABS | ABS sensors and cables | Anti-lock braking control |
| Other | Valves and fittings | Air distribution and control |
Always match the OEM reference and the trailer specification before ordering.
Trailer spare parts — frequently asked questions
Show FAQ
What are the most common trailer spare parts? On semi-trailers, the most common parts are brake discs, air springs, shock absorbers, spring brake actuators and ABS components, because these wear with mileage and load.
What is an air spring on a trailer? An air spring, or air bellows, is the rubber cushion in an air suspension system. Because it carries the load and sets ride height, a worn air spring affects handling and tyre wear.
What is a spring brake actuator (energoakumulator)? A spring brake actuator applies the parking and emergency brake using a strong internal spring. Therefore, it is a safety-critical part and must match the trailer brake system.
Do you supply parts for KRONE and SAF? Yes. Because components vary between makes, identify the trailer make, axle and system, then match the OEM reference for KRONE, SAF or other axles.