Quick Ship SKU #: PB-GMC-C40105 PacBrake PRXB Exhaust Brake GMC C6500/7500/8500 Cat 3116/E/3126

You're either here because your current exhaust brake isn't functioning properly, (i.e.. sticking, seizing) or maybe you just have the need for more braking horsepower. Whatever your motivation is, Pacbrake's PRXB exhaust brake is the next generation in supplemental braking, proven to provide reliable retarding performance throughout the entire RPM range.

MOUNTING HARDWARE: Includes all hardware and clamps to mount the brake to your turbo. Please make sure you have the right application and if any questions don't hesitate to give us a call or send an e-mail.

• For trucks with factory air compressor equipped, includes wiring and cab mounted switch (Trucks equipped with air brakes and/or air-ride suspension)
• For trucks not equipped with factory air compressor the onboard air Kit is required and includes compressor and wiring with cab mounted switch. Air tank is not included (Trucks equipped with hydraulic brakes and no air-ride suspension)

PRXB exhaust brakes deliver constant backpressure throughout the entire operating RPM range for unmatched stopping power!

PRXB exhaust brakes offer the highest braking power to lowest price ratio available. Pacbrake's flagship product is the unquestioned leader in the supplemental brake industry. It has changed the way people think about exhaust brakes by providing performance, safety and durability that is unmatched by any other exhaust brake on the market.

Upgrade any standard exhaust brake to a PRXB for an improved design and a longer lasting brake with significantly increased performance, tow and haul with complete control!

• STAINLESS STEEL SEALED AIR CYLINDER Hard anodized aluminum and stainless steel body and shaft with high performance seals
• AUTOMATIC LOW RPM ADJUSTMENT Optimum retarding performance maintained by maximizing exhaust backpressure throughout the entire operating RPM range
• MAXIMUM ALLOWABLE EXHAUST BACKPRESSURE LIMIT Designed and factory preset to meet standards and requirements set by the engine manufacturer
• NO OVERPRESSURE POTENTIAL Spring controlled, pressure regulated mechanisms
• 90 DEGREE CLOSING, NON-CONTACTING BUTTERFLY VALVE Designed to maximize backpressure while preventing seizing
• ARCOR NITRIDE HOUSING COMPONENTS Industry exclusive process that increases resistance to wear dnd corrosion while strengthening and adding lubricity
• FREE FLOW EXHAUST When deactivated, exhaust flow is unrestricted and won't interfere with power output
• PRECISION MOUNTING SURFACE Both contacting surfaces are machined, eliminating the need for troublesome gaskets

No Shipping To CA