Retarder (mechanical engineering) - Wikipedia
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.
What Is a Truck Retarder? - In The Garage with CarParts.com
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 …
Semi-Truck Retarders: How They Work & What They Do
May 3, 2025 · A retarder introduces resistance to the drivetrain, similar to how engine braking reduces or limits your speed by using the car's engine.
What is a retarder on a truck? Benefits and when you need it
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 …
What Are Truck Retarders? A Complete Breakdown - Turbochaos
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 …