Currency Selection

Hello.

It looks like you are shopping from the USA or other international location.

If you are shopping from within Canada, please switch to Canada for prices in CAD.

Selecting your shopping location accurately is critical to receiving your product as quickly as possible. We have warehouses both in Canada and the USA and want to get your product to you fast. Pricing adjustments and order delays may occur if you order in the wrong currency, including the potential for additional duties and taxes. Orders shipping to locations outside of North America may be subject to additional tariffs, duties and taxes.

Pacbrake Logo B
Skip to Content
KIT #: C44068

C44068 InLine Mount 4 inch PRXB Exhaust Brake Kit for 2003-2007 Dodge RAM 5.9L ISB

With 60-Day Money Back Guarantee

If you’re not satisfied, you may remove the products and return to Pacbrake for a refund within the first 60 days after your purchase as per our Returns Policy.

$1,339.21 Your Price
$1,785.61 Retail

Product Add-On

  • C18042 Non-Lighted 5/8" Shifter Switch for 2003-2007 Dodge Ram 2500/3500 (+ $83.51)
  • C14037 ECM By-Pass System for 2003-2004 Dodge RAM 2500/3500 5.9L Cummins ISB Engines(Manual) (+ $81.87)
  • C20135 ECM By-Pass System for 2004.5+ Dodge RAM 2500/3500 5.9L Cummins ISB Engines (Manual) (+ $64.45)
  • C20141 ECM By-Pass System for 2005 Dodge RAM 2500/3500 5.9L Cummins ISB Engines (Manual/Automatic*) (+ $64.45)

Check Stock - Kit #C44068

Canada

Call for more info

United States

Call for more info

NEED THIS PRODUCT PROFESSIONALLY INSTALLED?

Locate an authorized Pacbrake dealer near you.

Overview

Get the highest braking power to lowest price ratio available on the market with PRXB Exhaust Brakes by Pacbrake. 

We are proud suppliers of exhaust brake systems for use in the US Army's fleet of Stryker Wheeled Vehicles designed and built by General Dynamics Land Systems. 

Check out Pacbrake's InLine Mount 4 inch PRXB High Performance Exhaust Brake Kit for Dodge RAM 2003-2007 5.9L ISB 24 Valve Engine with Standard Transmisison and Dodge RAM 2006-2007 Cummins 5.9L ISB 24 Valve Engine 48RE w/ Automatic Transmission.

Product Description

  • Provides 50 percent More Braking Power at Lower RPM's.

  • The spring controlled pressure regulated mechanism on the exhaust brakes protects against engine overpressure.

  • 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 maximise backpressure while preventing seizing.

  • The brakes use industry exclusive Arcor nitride coating on housing and components which increases resistance to wear and corrosion.
  • Every PRXB Automotive Kit comes with everything required for a complete installation:

    PRXB Exhaust Brake, Controller (when required for application) and Pacbrake Onboard Air Kit, which includes: HP325 Series Compressor, 0.5 Gal Air Tank, 25 Foot Coiled Air Hose, Air Accessories and Fittings Kit.

    Air Actuated - Comes with Air Tank, Hose and Accessories.

    Optional Parts:

    For Standard Transmission:

    • Switch: Optional (Pacbrake Part Number C18042) for Dodge RAM 2003-2007 5.9L ISB 24 Valve Engine with Standard Transmission.
    • ECM Bypass: Optional (Pacbrake Part Number C14037) for Dodge RAM 2003-2004 5.9L ISB 24 Valve Engine with Standard Transmission. 
    • ECM Bypass: Optional (Pacbrake Part Number C20135) for Dodge RAM 2004.5 5.9L ISB 24 Valve Engine with Standard Transmission. 
    • ECM Bypass: Optional (Pacbrake Part Number C20141) for Dodge RAM 2005-2007 5.9L ISB 24 Valve Engine with Standard Transmission. 

    For Automatic Transmission:

    • Switch Pac: N/A. 
    • Transmission Controller: N/A

* - NOT FOR SALE IN CALIFORNIA - *

Vehicle Application

  • 2003 - 2007 Dodge RAM 5.9L ISB 24 Valve Engine with Standard Transmisison and Dodge RAM 2006 - 2007 Cummins 5.9L ISB 24 Valve Engine 48RE w/ Automatic Transmission.

Application Notes

All 2005 - 2007 kits will NOT work with Banks Turbo Back Monster® Exhaust. However, they will work with Banks Cat Back Monster® Exhaust. Applications for aftermarket turbo chargers, please contact Pacbrake for further kit information 800.663.0096. Air Actuated - Comes with Air Tank, Hose and Accessories.

Features

  • Pacbrake's PRXB exhaust brake delivers the strongest braking horsepower, greatest speed reductions & shortest stopping distances possible without the use of service brakes.
  • Providing 50 percent more braking power at lower RPM's, PRXB gives you the best holdback in the 1400-1800 RPM range (where you typically drive).
  • The spring controlled pressure regulated mechanism on the exhaust brakes protects against engine overpressure.
  • The brakes use industry exclusive Arcor nitride coating on housing and components which increases resistance to wear and corrosion.
  • Severe duty & military approved.

MANUALS, GUIDES & DOWNLOADS

We're just a phone call or an e-mail away!

Need Help?

Locate your nearest dealer

Find

Best Selling Products

MP1020 SLASHER Hoodie
Options Available
MP1020 SLASHER Hoodie KIT# MP1020
$49.00 Your Price
HP10002 ALPHA HD Rear Air Suspension Kit for 2003-2020 Dodge RAM 1500 MEGA CAB/2500/3500
HP10002 ALPHA HD Rear Air Suspension Kit for 2003-2020 Dodge RAM 1500 MEGA CAB/2500/3500
Add HP10002 ALPHA HD Rear Air Suspension Kit for 2003-2020 Dodge RAM 1500 MEGA CAB/2500/3500 to cart
ALPHA HD 5000 HP10002 ALPHA HD Rear Air Suspension Kit for 2003-2020 Dodge RAM 1500 MEGA CAB/2500/3500 KIT# HP10002
$398.83 Your Price
HP10581 Pacbrake DC "Delicious Curves" Tailgate Pad
HP10581 Pacbrake DC "Delicious Curves" Tailgate Pad
Add HP10581 Pacbrake DC "Delicious Curves" Tailgate Pad to cart
HP10581 Pacbrake DC "Delicious Curves" Tailgate Pad KIT# HP10581
$114.97 Your Price
$179.08 Retail
HP10253 Leveling Kit (2 inch Lift) For 2004-2024 Ford F-150 2WD/4WD
HP10253 Leveling Kit (2 inch Lift) For 2004-2024 Ford F-150 2WD/4WD
Add HP10253 Leveling Kit (2 inch Lift) For 2004-2024 Ford F-150 2WD/4WD to cart
HP10253 Leveling Kit (2 inch Lift) For 2004-2024 Ford F-150 2WD/4WD KIT# HP10253
$166.64 Your Price
HP20472-QM Single Channel Wireless (2nd Generation) w/ SD Compressor (Quick Mount)
HP20472-QM Single Channel Wireless (2nd Generation) w/ SD Compressor (Quick Mount)
Add HP20472-QM Single Channel Wireless (2nd Generation) w/ SD Compressor (Quick Mount) to cart
HP20472-QM Single Channel Wireless (2nd Generation) w/ SD Compressor (Quick Mount) KIT# HP20472-QM
$511.10 Your Price
C44045 Direct Mount 4 inch PRXB Exhaust Brake Kit for 2004.5-2007 Dodge RAM Cummins 5.9L
C44045 Direct Mount 4 inch PRXB Exhaust Brake Kit for 2004.5-2007 Dodge RAM Cummins 5.9L
Add C44045 Direct Mount 4 inch PRXB Exhaust Brake Kit for 2004.5-2007 Dodge RAM Cummins 5.9L to cart
C44045 Direct Mount 4 inch PRXB Exhaust Brake Kit for 2004.5-2007 Dodge RAM Cummins 5.9L KIT# C44045
$1,339.21 Your Price
$1,785.61 Retail
C44045 Direct Mount 4 inch PRXB Exhaust Brake Kit for 2004.5-2007 Dodge RAM Cummins 5.9L
C44045 Direct Mount 4 inch PRXB Exhaust Brake Kit for 2004.5-2007 Dodge RAM Cummins 5.9L
Add C44045 Direct Mount 4 inch PRXB Exhaust Brake Kit for 2004.5-2007 Dodge RAM Cummins 5.9L to cart
C44045 Direct Mount 4 inch PRXB Exhaust Brake Kit for 2004.5-2007 Dodge RAM Cummins 5.9L KIT# C44045
$1,339.21 Your Price
$1,785.61 Retail