This high - performance lift pump is perfect for owners of 2001 - 2010 GM Duramax 2500/3500 trucks. It's designed to work in tough diesel engine environments, ensuring a smooth fuel supply. With a 200GPH flow rate and an 8psi pre - set internal bypass, it keeps your engine running at its best. Comes with a fuel/water separator, mounting brackets, and easy - to - follow instructions.