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Pacbrake C40111 DirectMount PRXB Exhaust Brake
PART#
C40111 | SKU PBC40111
Vehicle Fitment For:
2004.5-2007 Dodge with 5.9L Cummins Engine (Brake Only)
See full application list below
$819.84
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Description
The Pacbrake C40111 DirectMount PRXB Exhaust Brake is the unquestioned leader when it comes to braking on your 2004.5-2007 Dodge 5.9L Diesel. Pacbrakes flagship product, the PRXB (pressure regulated exhaust brake), is the unquestioned leader in the supplemental brake industry. The patented PRXB design delivers the strongest braking horsepower, greatest speed reductions and shortest stopping distances possible without the use of service brakes. It maintains optimum retarding performance by maximizing the exhaust backpressure throughout the entire RPM range. Unlike a typical exhaust brake, which requires high RPMs to work properly, the PRXB delivers constant exhaust pressure (braking) as early as 1200 RPM through to the maximum allowable RPM.
Controlled by a master ON/OFF switch, Pacbrakes exhaust brakes provide whisper quiet supplemental braking that allows service brakes to be used much less, ultimately saving you 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.
WHATS 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, Pacbrakes 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.
CREATING & MAINTAINING BACKPRESSURE
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 pressure-controlled spring that is located on the outside of the exhaust brake housing.
PREMIUM BRAKING PERFORMANCE
As the engines RPM increase, the spring compresses and the arm moves away from the butterfly valve, therefore releasing more exhaust flow through the orifice. As the RPMs decrease, the spring releases and the arm applies pressure back onto the plate, covering the hole, and ultimately releasing a smaller amount of exhaust flow.
Features:
- PRXB Delivers Strongest Braking Horsepower
- Less Wear & Tear On Service Brakes
- Ideal For In-City Driving Or Steep, Downhill Grades
- Fits Stock Turbocharger
Note: Exhaust brake only. Can be used as an upgrade to replace a fixed orifice brake. If used on new installation, additional components will be required.
Manufacturer Warranty*:
3 Year / 100,000 Mile
3 Year / 100,000 Mile
Shipping Restrictions Apply 
This product can not be shipped to these states/provinces: CA
This product can not be shipped to these states/provinces: CA
Instructions & Tech Info
Installation Info
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Specifications For Pacbrake C40111
MPN
C40111
SKU
PBC40111
GTIN
628480000930
ID
33378
Manufacturer Name
Pacbrake
Shipping Weight
15.00 lb.
Shipping Length
16 in.
Shipping Width
9 in.
Shipping Height
7 in.
Fuel Type
Diesel
Manufacturer Warranty*
3 Year / 100,000 Mile
Prop 65
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
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