Fits: 2001 thru 2010 Chevy Silverado/GMC Sierra 2500HD/3500HD LB7/LLY/LBZ/LMM Duramax Diesel The AFE DFS780 Fuel System with full time operation offers a complete solution for all your Duramax Fuel system issues. The fuel system in your truck contains numerous contaminants and debris including the water and Air vapors captured within. These contaminants are a direct correlation to your failing injectors. The AFE Fuel Pump features a patent-pending design capable of removing power robbing air, water, and contaminants. The AFE DFS780 provides constant support to your CP3/CP4 pump while improving throttle response and horsepower. Features: Clear High-Impact Polycarbonate Sight Glass, Allows visual inspection of fuel. Helical Bronze Spur Gears, Bronze gears more forgiving of contaminants than steel gears. The helical spur gear design runs quieter than straight cut gears. Billet 6061-T6 Aluminum Manifold, Eliminates porosity concerns with cast aluminum. "Marine Grade" Motor, Protected against dust intrusion and powerful water jets. Plug & Play Installation, Supplied harness attaches directly to battery and utilizes Deutsch weather-proof connectors. No cutting or modifications of the stock fuel lines required. Vehicle can easily be returned to stock. Relay Controlled, The DFS780 is powered by your ignition and with the built-in bypass allows engine to run even if the DFS780 unit were to fail. PEEK Bearing Wear Surfaces, The DFS780 spur gears ride on PEEK (Polyether Ether Ketone) bearing surfaces to reduce both noise and wear. Contoured CNC Machining Of Manifold Passages, Enhances flow through the manifold to reduce pressure drop due to flow restrictions. Direct Bolt-on Steel Mounting Bracket, Heavy duty bracket mounts to the frame and utilizes existing hole to secure. Fuel Pressure Gauge Port, 1/8 NPT port allows customer to attach an external pressure gauge to monitor fuel pressure. O.E Quality Viton Seals, Compatible with diesel and biodiesel fuels. Built in the U.S.A. *CARB EO# D-550-37*
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