Diesel Thoroughbred Tractor Parts ABOUT US | RETURNS FORM | POLICIES | FAQ'S | VIEW CART | CHECKOUT
100% customer guarantee
join our newsletter Thoroughbred Diesel
brands performance stock parts apparel Wades Pick
customer guarantee
shop by diesel
shop by
read our low price guarantee
gift cards
diesel zone
exhaust brakes
Home > Pacbrake > Exhaust Brakes > Dodge Cummins 6.7L > C44038
inline mount
free shipping
click here to order
Pacbrake logo

Pacbrake C44038 InLine Mount PRXB 4" Exahust Brake

Dodge Cummins
Fits Years: 2007.5, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
Engine Size: 6.7L

Pacbrake Part # C44038
Our Part # PACC44038

Installation Manual pdf
  • InLine
  • Free Shipping Special on Pacbrake PRXB exhaust brakes at Thoroughbred Diesel
  • NOTE: This will not work with the DPF on the truck.
PACBRAKE PRXB 4" Inline Mount Exhaust Brake
2007.5-2017 6.7L Dodge Ram Cummins

With the purchase of a 6.7L Cummins, many are excited about the integrated factory exhaust brake that is built into the stock VGT (Variable Geometry Turbo). And for those that have never upfitted their truck with an aftermarket exhaust brake, it works great. However, for any of us that have previously owned trucks equipped with an aftermarket butterfly valve style brake, such as this PRXB unit from PacBrake, disappointment usually follows the first trip with a trailer. Unfortunately, the stock VGT brake just simply doesn't have the holding power in comparison to a traditional exhaust brake.

For those that are planning to eliminate the failure prone factory VGT in favor of a traditional turbo for increased performance and reliability, you will lose the stock exhaust brake, but the good news is, PacBrake has developed a brake built specifically for the 6.7L engines in these circumstances. And please note, this brake will ONLY work if you have eliminated the stock Variable Geometry Turbo and are running an aftermarket turbo back exhaust.

Product Fitment Chart
Application Exhaust Size Description
PRXB Kit #
Switch Pac
(Optional)
ECM ByPass
(Optional)
Transmission
Controller
2007.5-2017 InLineMount
2007½-2017
Cummins 6.7L ISB
24 Valve Engine
4" InLineMount 4" PRXB High Performance Exhaust Brake Kit (Air Actuated). Comes with Air Tank, Hose & Accessories. C44038 N/A N/A N/A
NOTE: This will not work with the DPF on the truck.
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

PRXB Exhaust Brake Specifics
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.
Kit Contents

Every PRXB Automotive Kit comes with a everything required for a complete installation:
  • PRXB Kits Include
  • 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 & Fittings Kit
Kit Contents
Product Description Price Order
Pacbrake C44038
Style:
InLineMount 4"
Fits: 2007.5-2017 Dodge Cummins 6.7L
$1,781.27
Superlube (Exhaust Brake Maintenance)
Superlube Part #: C18037
Our Part #: PACC18037
$18.99
NOTE: This will not work with the DPF on the truck.
 
Thoroughbred Diesel logo glowing Thoroughbred Diesel Performance and Repair Shop
4843 Rockwell rd.
Winchester, KY 40391
Call Toll Free: 1-866-737-4966
Email:
sales@thoroughbreddiesel.com
Copyright© 2003-2017 Thoroughbred Diesel All rights reserved.
Site Map
Customer Reviews
     
100% customer guarantee