Over time, debris in the stock cooler bypass valve can cause the internal valve to jam, resulting in an annoying recirculation mode retention. Ensure that this doesn't happen by going with the BD Diesel Cooler Bypass! This cooler bypass keeps the transmission at manageable temperatures consistently to prevent failure by ensuring total fluid flow through the cooler assembly.

Avoid costly maintenance passes due to overheating and subsequent premature transmission failure by eliminating the factory bypass valve with the BD Diesel Cooler Bypass!

What sets BD Diesel Performance from other brands is that it is dedicated to providing regular and enthusiast diesel vehicle owners with competitive performance parts in both quality and price. The brand started in 1972 when Valley Fuel Injection Ltd. started offering services to the public.

Nowadays, Valley Fuel and BD Diesel Performance operate as one and direct over eight specialty divisions that serve specific vehicle applications: Fuel Injection Calibration Department, Exhaust Brake Manufacturing, Electronic Circuit Design and Assembly, Transmission and Torque Converter Design and Remanufacturing, Turbocharger Design, Installation, and Research and Development. All of these departments are housed in a 65,000 square foot high-tech facility manned by specialists and highly-trained individuals to ensure the manufacturing process is a seamless one.

Once BD Diesel Performance got its big break in the market after releasing the first exhaust brake for the then-flourishing pickup truck craze, the brand rode the wave of momentum and released a barrage of turbo, fuel, transmission, exhaust, and electronic solutions to give customers a wide range of options to choose from.