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Packbrake Direct Mount 4" PRXB Exhaust Brake For 1994-1998 Dodge 5.9 Cummins 12V

Exhaust Brake

Pricing: $1,607.05

FREE Ground Shipping


PRXB offers 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.  Every PRXB Automotive Kit comes with everything required for a complete installation. PRXB Exhaust Brake, Controller (when required for application) and AMP Onboard Air Kit, which includes: HP325 Series Compressor, 0.5 Gal Air Tank, 25ft Coiled Air Hose, Air Accessories and Fittings Kit. Upgrade any standard exhaust brake to a PRXB for an improved design and a longer lasting brake with significantly increased performance. Tow & haul with complete control.



  • Severe duty & military approved
  • Compliant with latest emission regulations
  • Withstands extremely high exhaust temperatures
  • The brakes have hard anodized aluminum and stainless steel body and shaft with high performance seals
  • The spring controlled pressure regulated mechanism on the exhaust brakes protects against engine overpressure
  • Precision machined surfaces on the exhaust brake eliminate the need for troublesome gaskets and risk of leakage
  • Delivers maximum exhaust pressure (braking) as low as 1200 RPM through to the maximum allowable engine RPM
  • Provides increased performance and peace of mind with technology that protects the engine from the potential of overpressure
  • Maintains optimum retarding performance by maximizing the exhaust backpressure throughout the entire operating RPM range
  • Delivers the strongest braking horsepower, greatest speed reductions & shortest stopping distances possible without the use of service brakes
  • Pacbrake exhaust brakes are designed specifically for individual engine applications to maximize performance and reliability. They are not a one size fits all compromise
  • The brakes use industry exclusive Arcor nitride coating on housing and components which increases resistance to wear and corrosion while strengthening the exhaust brake and adding lubricity
  • Maintenance is as simple as using the exhaust brake on a regular basis and periodically applying Superlube (Pacbrake's multi-purpose heat resistant lubricant which helps to prevent rust and corrosion)
  • When the brake is deactivated, exhaust flow is unrestricted and won't interfere with power output Patented 90 degree Non-contacting Butterfly Valve is specially engineered to maximize backpressure while preventing seizing



  • 1994 - 1998 Dodge RAM 5.9L 6BT 12 Valve Engine with 3'' Stock Exhaust with HX/HY35 Turbo with Standard Transmission



  • 1994 - 1998 Dodge RAM 5.9L 6BT 12 Valve Engine with 3'' Stock Exhaust with HX/HY35 Turbo with Standard Transmission
  • For vehicles with 3'' Stock Exhaust with HX / HY35 Turbo. All 1994-2002 trucks using a DirectMount kit that have 4'' aftermarket exhaust systems require an additional adapter C11342. Air Actuated - Comes with Air Tank, Hose and Accessories


  • C44072
  • C44072
  • New

Shipping Information

  • Item Requires Shipping
  • 53.0 lbs.
  • W16.5000” x H15.5000” x L34.5000”
  • FREE Ground Shipping

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