2003-2004 Cummins 4" PRXB High Performance Exhaust Brake (C40110)

Fits

The Pacbrake C40110 4" PXRB Direct Mount High-Performance Exhaust Brake will deliver the strongest braking horsepower, greatest speed reductions, and the shortest stopping distances possible without having to use your service brakes. In order to maintain optimum retarding performance, the exhaust backpressure is maximized through the entire operating RPM range. 

This kit also provides increased performance and peace of mind from technology that will protect the engine from any potential overpressuring. If you are looking for an exhaust brake that will provide performance, safety, and durability, then this is the Exhaust Brake for you!

Part Number: C40110

• Provides 50 percent More Braking Power at Lower RPM's
• The PRXB gives you the Best holdback in the 1400-1800 RPM range (where you typically drive), which is better than any standard exhaust brake on the market.
• The spring controlled pressure regulated mechanism on the exhaust brakes protects against engine overpressure.
• Specifically for the 5.9L ISB Cummins to maximize performance and reliability. 
• When the brake is deactivated, exhaust flow is unrestricted and won't interfere with the power output
• Patented 90-degree Non-contacting Butterfly Valve is specially engineered to maximize backpressure while preventing seizing.
• This brake uses industry exclusive Arcor nitride coating on housing and components which increases resistance to wear and corrosion while strengthening the exhaust brake and adding lubricity.
• Precision machined surfaces on the exhaust brake eliminate the need for troublesome gaskets and risk of leakage.
• Utilizes a hard-anodized aluminum and stainless steel body and shaft with high-performance seals.
• Maintenance is as simple as using the exhaust brake on a regular basis and periodically applying Superlube (Pacbrake's multi-purpose heat resistant lubricant which helps to prevent rust and corrosion).

• Replaces Fixed Orifice Exhaust Brake.
• For Standard Transmission-Switch Pac: Optional Additions include; Shifter Switch C18042 & An ECM Bypass C14037.