Posted by Jake Brake on June 29th, 2005.

Posted by Jake Brake on May 24th, 2005.

Posted by Jake Brake on February 2nd, 2006.

Posted by Jake Brake on April 11th, 2006.

Posted by Jake Brake on August 5th, 2005.

The Jacobs Engine Brake has been on the market since 1961, better known as the "Jake Brake".

A "Jake Brake" is an engine compression release brake used especially for steep hill downgrades.

The Jake Brake opens the exhaust valves when the piston is near top dead center (where ignition normally occurs).

The Jake Brake turns a power producing engine into a power absorbing air compressor and in turn, causes the truck to slow down.

Posted by Jake Brake on June 1st, 2006.