We Value Your Business

Choose Category

Choose Brand

Customer Service

Hours of Operation

Monday-Friday
8am to 5pm PST


By Phone

Toll Free: 888-623-4373

Local: 714-848-2170


By Fax

Fax: 714-841-5752


By Email

Sales: sales@ocdiesel.com

Service: service@ocdiesel.com

Returns: returns@ocdiesel.com

Specials


  Home > by Vehicle >

Pacbrake C44074 DirectMount 4" PRXB Exhaust Brake Kit for 1998.5 Dodge 5.9L Cummins

Pacbrake C44074 DirectMount 4" PRXB Exhaust Brake Kit for 1998.5 Dodge 5.9L Cummins
Display Image May Vary From The Actual Product


 
Click Below for Alternate Views


Key Features:
  • Includes Air Tank, Hose, and Accessories
  • Mounts Directly to the Back of the Turbo

1998.5 Dodge 5.9L Cummins
Standard Transmission
Low Price: $1,369.01


Part Number:
PAC-C44074

 

Qty:
Product Information Installation Shipping
 

Pacbrake C44074 DirectMount 4" PRXB Exhaust Brake Kit for 1998.5 Dodge 5.9L Cummins

Product Category Diesel Exhaust Brakes
Brand Category Pacbrake
Part Number PAC-C44074
Features • Much Higher Retarding Power for a Lower Cost
• Regulates Exhaust Backpressure as Engine Speed Changes
• Factory Preset and Designed to Meet Engine Manufacturer Standards
• Nitride Coating Provides Protection against Wear and Corrosion
• Does Not restrict exhaust Flow When Not Activated
• Bolts Directly to the Back of the Turbocharger
• Allows Higher Retarding Potential by Minimizing Connecting Inbetween Components
• ECM Bypass Part Number C14004 is Required
Brake Type DirectMount
Material Cast Iron
Weight 36 lbs
Warranty Two Years
Special Notes Warranty registrations must be completed either online or via mail using the provided warranty card in your Pacbrake product kit. All warranty registrations must be submitted within 30 days of the installation date.
Manufacture Info

WHAT IS A PRXB?
A PRXB is a Pressure Regulated Exhaust Brake that offers the highest retarding power for the lowest price available. Although the PRXB's retarding power is comparable to that of a compression release engine brake, the manufacturing and installation costs are significantly less.

HOW IS IT DIFFERENT FROM A STANDARD FIXED ORIFICE EXHAUST BRAKE?
Conventional exhaust brakes experience a reduced exhaust backpressure at low engine speeds, resulting in an unnecessary loss of braking power. Pacbrake's innovative PRXB addresses this issue with a patented wastegate design that regulates exhaust backpressure as engine speed changes. The valve maintains near constant engine backpressure throughout the entire RPM range, providing maximum exhaust braking power at all times.

PRXB EXHAUST BRAKE SPECIFICS

STAINLESS STEEL AIR CYLINDER:
Hard coated stainless steel cylinder and shaft with high performance seals throughout.

AUTOMATIC LOW RPM ADJUSTMENT:
Optimum retarding performance maintained by maximizing exhaust backpressure throughout the entire RPM range.

MAXIMUM ALLOWABLE EXHAUST BACKPRESSURE LIMIT:
Factory preset and designed to meet standards and requirements set by the engine manufacturer.

NO OVERPRESSURE POTENTIAL:
Enlarged oriface design.

90 DEGREE CLOSING, NON-CONTACTING BUTTERFLY VALVE:
Guarantees engine safety with special design to prevent sticking.

ARCOR NITRIDE HOUSING AND COMPONENTS:
Industry exclusive process that increases resistance to wear and corrosion, strengthens and adds lubricity.

FREE FLOW EXHAUST:
When not activated, exhaust flow is unrestricted and won't interfere with power output.

PRECISION MOUNTING SURFACE:
Both contacting surfaces are machined, which eliminates the need for gaskets.

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 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.

DIRECTMOUNT
Pacbrake's DirectMount exhaust brakes go behind the turbo in place of the exhaust elbow. It's a direct bolt-on kit that is easy to install. No fabricating for most applications. This application is preferred because of the reduced number of connections between the exhaust brake and the turbocharger. The mating surfaces are both machined cast iron which eliminates any chance of exhaust leaks. For vehicles with straight back systems shortening of the header pipe is required to maintain an adequate amount of flex pipe. Vehicles with a 90 degree header pipe use a cast elbow to interface with the stock header pipe. Pacbrake offers replacement header pipes for some truck models.

KIT CONTENTS

Every PRXB Automotive Kit comes with a everything required for a complete installation:

  • PRXB Exhaust Brake
  • Controller (when required for application)
  • AMP Onboard Air Kit, which includes:
    • HP325 Series Compressor
    • ½ Gal Air Tank
    • 25ft Coiled Air Hose
    • Air Accessories and Fittings Kit

PRXB Exhaust Brake Operation
With over a quarter of a million exhaust brakes manufactured and sold, Pacbrake has mastered quality product development. Being home to the only exhaust brake on the market with a true variable orifice, remarkable constant backpressure and strongest braking horsepower, Pacbrake has revolutionized modern day exhaust braking with its patented design of the PRXB.

WHAT'S SO SPECIAL ABOUT THE PRXB?
In order to have consistent and effective braking over the entire RPM range, it is important (and necessary) to maintain constant backpressure. To achieve this, Pacbrake's patented design has incorporated an additional waste gate on the butterfly valve to regulate the amount of exhaust flow that is being passed through. The flow is controlled by a spring-loaded arm, whose pressure rating and location are key factors in the functionality of the PRXB. Located outside of the housing and away from the heat, the spring is able to maintain its strength and durability for years of proper and precise braking performance.

Backpressure is created by exhaust flow entering the housing, hitting the closed butterfly valve and being forced back out in the direction it came. It is maintained by the calibrated spring that is located on the outside of the exhaust brake housing. As the engine's RPM increase, the spring compresses and the arm moves away from the butterfly valve, releasing more exhaust flow through the orifice. As the RPMs decrease, the spring extends and the arm moves the plate, which covers the hole, and ultimately allows a smaller amount of exhaust flow past.

The maximum exhaust flow design accelerates the escape of gases through the wastegate which spools the turbocharger faster resulting in decreased turbo lag. In turn, this increases horsepower and torque while lowering exhaust gas temperatures. The brake's 5 bolt fl ange bolts directly to the turbocharger outlet (DirectMount design) eliminating the restrictive factory fl ange. Exhaust pipe adapters are available to fi t factory and all larger aftermarket exhaust systems.

WITH THE PRXB, THERE IS LESS THAN A 10% CHANGE IN BACKPRESSURE OVER THE ENTIRE RPM RANGE

PACBRAKE'S PRXB VS STANDARD BRAKES
With its unmatched retarding performance, the PRXB delivers constant exhaust pressure (braking) throughout the entire RPM range. Providing performance, safety and durability not seen in any other exhaust brake, the PRXB provides you with the control you need to slow your vehicle – extending your service brake life as much as 3-5 times!

Selecting the Allison transmission's tow/haul mode when reducing speed provides approximately 150 retarding horsepower. In the same mode, with the addition of a Pacbrake PRXB, the retarding ability is almost doubled, providing the most effective speed reduction possible without the need for service brakes. Allison transmissions will automatically downshift to attain higher RPM to aid in retarding, but with a Pacbrake PRXB, higher RPM is not as critical due to the unique modulation design.

Note:
Vehicles with aftermarket 4" O.D. exhaust systems will need 2 adapters – C11342.

Note:
For vehicle's in which the factory HX / HY35 turbo charger has been changed to an aftermarket turbo charger, use only an inline kit. A mounting group must also be purchased with the kit. Kit Number by Exhaust Size: 4" – C11400, 3.5" – C11420, 3" – C11440.


Accessories
Pacbrake C18041 Switch PAC Shifter-Mounted Switch for 1998.5-2002 Dodge 5.9L Cummins Pacbrake C14004 ECM Bypass Kit for 1998.5 Dodge 5.9L Cummins Pacbrake C12015 ECM Bypass Kit for 1999-2002 Dodge 5.9L Cummins
Low Price: $63.72
Low Price: $69.56
Low Price: $78.03
Pacbrake C18041 Switch PAC Shifter-Mounted Switch for 1998.5-2002 Dodge 5.9L Cummins Pacbrake C14004 ECM Bypass Kit for 1998.5 Dodge 5.9L Cummins Pacbrake C12015 ECM Bypass Kit for 1999-2002 Dodge 5.9L Cummins


Share your knowledge of this product with other customers... Be the first to write a review


Browse for more products in the same category as this item:

by Vehicle
Brand
PacBrake
Exhaust
Exhaust > Exhaust Brakes
Exhaust > Exhaust Brakes > Exhaust Brake Kits
PacBrake > PacBrake Exhaust Brakes
by Vehicle > 94-02 Dodge 5.9L Cummins
by Vehicle > 94-02 Dodge 5.9L Cummins > Exhaust Brakes