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Pacbrake 4" PRXB Exhaust Brake Kit GM 01-05 6.6L Duramax w/out Opt. 2nd Alternator Inline Mount Auto Trans

GM 01-05 6.6L Duramax w/out Opt. 2nd Alternator Inline Mount Auto Trans
Pricing: $1,349.00

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PRXB C40075 Exhaust Brake Kit 2001 - 2005 Chevy/GMC 6.6L Duramax 32 Valve Engine - Allison 1000 Series Automatic Transmission without optional 2nd alternator.

Notes: This kit is for 6.6L Duramax vehicles without optional 2nd alternator. Customer vehicles with the 2nd alternator, will have to fabricate their own mounting for the compressor.All these kits are for vehicles with factory exhaust systems. Vehicles with aftermarket 4'' O.D. Exhaust systems will need 2 adapter : C11342. Air Actuated - Comes with Air Tank, Hose and Accessories.


Pacbrake's InLineMount 4'' PRXB Exhaust Brake Kit

PRXB offers the highest braking power to lowest price ratio available. Pacbrake’s flagship product is the unquestioned leader in the supplemental brake industry. It has changed the way people think about exhaust brakes by providing performance, safety and durability that is unmatched by any other exhaust brake on the market.

PRXB Feature

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

Pacbrake exhaust brakes are designed specifically for individual engine applications to maximize performance and reliability.

They are not a one size fits all compromise

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 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
The brakes have 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)

Withstands extremely high exhaust temperatures

Compliant with latest emission regulations

Severe duty & military approved


PRXB Benefits

Delivers the strongest braking horsepower, greatest speed reductions & 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


Kit Contents:

Every PRXB Automotive Kit comes with everything required for a complete installation. PRXB Exhaust Brake, Controller (when required for application) and AMP Onboard Air Kit, which includes: HP325 Series Compressor, 0.5 Gal Air Tank, 25ft Coiled Air Hose, Air Accessories and Fittings Kit.
Upgrade any standard exhaust brake to a PRXB for an improved design and a longer lasting brake with significantly increased performance. Tow & haul with complete control.


  • PAC-C40075
  • PAC-C40075
  • Pacbrake
  • New

Shipping Information

  • Item Requires Shipping
  • 32.0 lbs.
  • W12.0000” x H6.0000” x L6.0000”
  • FREE Ground Shipping

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