- Stock Status: In Stock
- Manufacturer: PacBrake
- Model: C40302
- Weight: 15.00lb
- SKU: C40302
- UPC: C40302
PacBrake Special
PacBrake C40302 PRXB Pressure Regulated Exhaust Brake for International DT466E and HT530E Engines
PacBrake’s 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, you can choose when to engage the exhaust brake with just the lift of your foot from the throttle pedal. PacBrake’s 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.
Product Benefits:
- Provides 50 percent More Braking Power at Lower RPM's. PRXB gives you the best hold-back in the 1400-1800 RPM range (where you typically drive).
- The spring controlled pressure regulated mechanism on the exhaust brakes protects against engine over-pressure.
- 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 back-pressure while preventing seizing.
- 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.
Applications:
- International / Navistar 3800 / 4700 / 4900 / 5000 / 7000 Series 1998-1999 DT466E with 90° Exhaust Pipe
- International / Navistar 3800 / 4700 / 4900 / 5000 / 7000 Series Pre-2002 DT/HT530E without Multiplex Wiring
- International / Navistar 4300 / 4400 Series 2002+ HT530E with Multiplex Wiring
- International / Navistar 7000 Series Pre-2002 DT/HT530E without Multiplex Wiring
- International / Navistar 7000 Series 2002+ HT530E with Multiplex Wiring
- International / Navistar 8000 Series Pre-2002 DT/HT530E without Multiplex Wiring
- International / Navistar 8000 Series 2002+ HT530E with Multiplex Wiring
Special Notes:
- Direct Mount - Mounts to Back of Turbocharger
Other Information:
- Delivers the strongest braking horsepower, greatest speed reductions, and shortest stopping distances possible without the use of service brakes
- Maintains optimum retarding performance by maximizing the exhaust backpressure throughout the entire operating RPM range
- 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
- Withstands extremely high exhaust temperatures
- Compliant with latest emission regulations
- Severe duty and military approved
- No risk of engine overpressure


The state of California requires that this warning be posted for people purchasing products that reside in California.
WARNING: Products may contain one or more chemicals known in the State of California to cause cancer and/or birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov



