Pacbrake C40111 Direct Mount 4 Prxb Exhaust Brake | 04.5-07 Dodge 5 9L Cummins

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Pacbrake C40111 Direct Mount 4 Prxb Exhaust Brake | 04.5-07 Dodge 5 9L Cummins


Warning: This product can expose you to chemicals that are known to the State of California to cause cancer. For more information, visit

The Pacbrake C40111 DirectMount PRXB Exhaust Brake is the unquestioned leader when it comes to braking on your 2004.5-2007 Dodge 5.9L Cummins. Pacbrake’s flagship product, the PRXB (pressure regulated exhaust brake), is the unquestioned leader in the supplemental brake industry. The patented PRXB design delivers the strongest braking horsepower, greatest speed reductions and shortest stopping distance possible without the use of service brakes. It maintains optimum retarding performance by maximizing the exhaust backpressure throughout the entire RPM range. Unlike a typical exhaust brake, which requires high RPMs to work properly, the PRXB delivers constant exhaust pressure (braking) as early as 1200 RPM through to the maximum allowable RPM.

Controlled by a master ON/OFF switch, Pacbrake’s exhaust brakes provide whisper quiet supplemental braking that allows service brakes to be used much less, ultimately saving you money. They have the ability to be left on all the time, making it ideal for in-city driving or for steep, downhill grades. This product pays for itself as less wear on the brake pads means fewer brake jobs.

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