BD Diesel 1028040 Universal Exhaust Brake 4.0 Inch Remote Mount Air Actuated

The BD Diesel 1028040 is a universal remote mount exhaust brake designed to provide superior engine braking performance for diesel trucks and motorhomes. This 4.0-inch air-actuated exhaust brake delivers up to 150 retarding horsepower throughout the engine's RPM range, giving you confident control on steep grades and mountain roads.

Variable Orifice Technology:

BD Diesel's exclusive Variable Orifice Technology uses a solid, offset butterfly valve design with a spring-loaded pneumatic cylinder and adjustable pressure regulation. Unlike competing designs that rely on holes or additional components, this system maintains consistent braking power across the entire RPM range, not just at high engine speeds.

Built for Extreme Conditions:

The rugged cast-iron housing incorporates BD's proprietary alumibronze bushing and piston ring-seals to withstand the intense heat and pressure of the exhaust environment. The butterfly valve and rotating shaft are constructed from stainless steel for superior corrosion resistance and long-term durability.

Key Features:

• Up to 150 retarding horsepower throughout RPM range
• 4.0-inch remote mount air-actuated design
• Solid offset butterfly with stainless steel construction
• Adjustable pressure regulation for customized braking
• Cast-iron housing with alumibronze bushing technology
• Piston ring-seals for reliable high-temperature operation
• All mounting hardware included
• Approximate 4-hour installation time

Compatibility Notes:

• Brake controls connect to throttle pedal with Accelerator Pedal Position Sensor (APPS). Vehicles without APPS require BD 1300420 micro switch and custom bracket
• May not work with engines equipped with OEM Variable Vane (VGT) turbos such as Cummins ISX. Compatible with aftermarket non-VGT turbos
• Exhaust back pressure test gauge kit (BD 1030050) suggested for proper setup
• Not for sale or use on California-licensed vehicles

Warranty Coverage:

Parts: 24 months/24,000 miles | Labor: 12 months/12,000 miles

Emissions Compliance:

This product meets EPA reasonable basis requirements and is legal for sale and use within federal EPA jurisdiction (EMS:2).