For 2001-2010 Chevrolet GMC 2500HD and 3500HD 6.6L Duramax Diesel. This material also provides superior corrosion resistance, extending the lifespan of the hoses. Connects the Fuel Tank to the Rear Fuel Cooler: The primary function of these hoses is to transport fuel from the fuel tank to the rear fuel cooler, ensuring proper fuel circulation within the engine.
