The Volvo retarder with codes 21156557, 22216631, 22447691, 1069124-12 is an essential component for the braking system of heavy vehicles. It is designed to reduce brake wear and provide better vehicle control during descents or sudden decelerations.

The image shows a used Volvo retarder, which shows normal wear for a part of this type. Details such as the central gear wheel, electrical and mechanical connections, as well as some identification marks engraved on the surface of the part can be observed.

This part is crucial for maintaining the vehicle’s safety and performance, ensuring more efficient and controlled braking. It is recommended to be installed by a professional to ensure proper functioning and to maximize the vehicle’s lifespan.