A simple retarder uses vanes attached to a transmission driveshaft between the clutch and roadwheels. They can also be driven separately via gears off a driveshaft.

Essential guide to truck retarders: Learn how these auxiliary systems convert kinetic energy to heat for safe, consistent speed control.

Mar 12, 2025 · Most trucks, tractors, and semi-trailers will usually have a retarder lever located on the right side of the steering wheel, as well as a button that turns it on. Once the retarder is on, the driver …

May 3, 2025 · Instead of being placed at each of the wheels of a truck, like disc or drum brakes, a retarder is located elsewhere along a truck's drivetrain, usually mounted on its gearbox.

Jun 26, 2025 · A retarder in a truck is an additional braking system used to reduce the vehicle's speed without relying on the foot brakes. The main purpose of a retarder is to increase safety, minimize …

May 24, 2025 · Is Retarder The Same As Engine Brake? No, a retarder and an engine brake (Jake brake) are not the same, although they serve similar purposes. An engine brake uses compressive …

A retarder is a device that slows down a vehicle without using the traditional braking system. It harnesses engine power to create resistance that decelerates the truck, making it particularly …

Aug 28, 2025 · retarder (plural retarders) Something which retards or slows. synonyms, antonyms quotations Synonyms: bottleneck, inhibitor, retardant, limiter Antonyms: accelerant, promoter, …

Jul 17, 2023 · A retarder is an additional brake system used in trucks and buses that supports the traditional disc braking system. Thanks to this system, it is easier to control the vehicle, especially …

Jul 22, 2025 · The retarder is often located at the transmission output or on the propeller shaft. If the retarder is located behind the transmission it is called a secondary retarder.