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Pacbrake PRXB Exhaust Brakes

Pacbrake PRXB Exhaust Brakes offer superior braking power for diesel trucks, significantly reducing wear on service brakes and enhancing control, especially when towing or descending grades. Unlike conventional exhaust brakes, the patented PRXB (Pressure Regulated Exhaust Brake) design maintains consistent exhaust backpressure across the entire RPM range, delivering optimal retarding power even at lower engine speeds (typically 1400-1800 RPM).These high-performance exhaust brakes feature a spring-controlled pressure regulating mechanism to prevent engine overpressure and utilize an exclusive Arcor nitride coating on housing and components for increased wear and corrosion resistance, ensuring durability and longevity. Available as direct mount units or complete kits, Pacbrake PRXB exhaust brakes are a cost-effective and highly effective solution for improving safety and extending the life of your vehicle's braking system.

Pacbrake C44072 4-inch PRXB Exhaust Brake Kit, showing the brake assembly with a silver actuator, springs, and a dark grey exhaust pipe opening, indicating it's a brake-only kit.
Pacbrake C40110 DirectMount 4 inch PRXB Exhaust Brake Only, showing the dark grey valve assembly with a silver actuator and springs, designed for exhaust flow restriction.
Pacbrake C44045 4 inch PRXB Exhaust Brake Kit for trucks, featuring air springs, mounting plates, and exhaust pipe sections.
Pacbrake C40111 Direct Mount 4 inch PRXB Exhaust Brake, a turbo mount exhaust brake kit with Max Flow technology, featuring a dark grey cast housing and a silver actuator.
Pacbrake PRXB High Performance Exhaust Brake, designed to enhance braking and control for heavy-duty diesel vehicles.
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