These FASS Dura-Max Flow Enhancer pusher pumps were designed after the FASS DDRP series lift pumps. and is now available for the GM and Chevy Duramax diesel engines. GM trucks equipped with the 6.6L Duramax do not have a stock lift pump, forcing the injection pump to "pull" the fuel all the way from the tank, creating a vacuum, and constantly introducing more air and vapor into your fuel. The Dura-Max Flow Enhancer creates a positive flow of fuel, "pushing" it to your injection pump, eliminating vacuum, and drastically reducing air and vapor in your fuel.
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