Is your current brake sticking or seizing? Or maybe you just want more braking power??? Either way, Pacbrake’s revolutionary PRXB exhaust brake is the answer. Adapted for a variety of diesel vehicle applications, the PRXB provides the strongest braking horsepower, greatest speed reductions and shortest stopping distances possible without the use of conventional brakes.

Designed specifically for trucks equipped with 6.7L Cummins diesel engines, Pacbrake's LoadLeash™ will double the supplemental braking power while increasing vehicle control and ride comfort.

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