A Jake Brake is a type of compression release brake that helps truck drivers slow down their truck without wearing out the service brakes. Commonly called an engine brake, Jake Brakes are often used in large diesel engines on semi-trucks.

Why do they call it Jake braking?

Where Does the Name Jake Brake Come From? The name Jake Brake comes from a product that, unsurprisingly, is named the Jacobs Engine Brake. The company that makes them, Jacobs Vehicle Systems, says that its system is a diesel engine retarder that uses the engine to help slow the vehicle.

Is Jake brake illegal?

Jake braking is illegal in some areas due to the noise disturbance it produces; often resembling the sound of gunshots and in some areas could potentially cause environmental repercussions.