aFe 42-12021 Fuel pump DFS780 series 03-04.5 cummins

*Built-in Bypass For Stock Fuel System:*

Allows vehicle to run on stock fuel pump under light loads, reducing wear & tear on both the DFS780 and the stock high-pressure pump.

*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.

*Boost Activated Pump Engagement:*

Supplied preset boost switch activates pump only under load, reducing wear & tear on both the DFS780 and the stock lift pump.

*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.

Note: This system is not currently CARB exempt and is not available for sale in California or for use on any vehicle registered with the California Department of Motor Vehicle.