The diesel fuel in your truck contains contaminants dirt, water and air/vapor which is reducing power and damaging your diesel fuel injectors. Introducing the aFe POWER DFS780 Diesel Fuel System, with its patent-pending design capable of removing power-robbing debris such as air, water and other contaminants. The DFS780 also boosts fuel pressure ensuring constant availability for the high-pressure pump, improving throttle response and horsepower at all RPMs.
The DFS780 was designed from the beginning to eliminate weaknesses found in other "fuel transfer" system. aFe has spent almost four years engineering what we feel is the best, most reliable system available. Depending on the specific application, we offer features such as boost-activated fuel flow increase, a high-impact polycarbonate "sight glass" to visually check fuel conditions, a reliable "marine grade" motor and Viton seals to name a few.
Features and Benefits
High Efficiency Fuel Filter
Rated at 5 microns, this fuel filter removes contaminants and works in conjunction with stock fuel filter.
Helical Spur Gears
Helical Bronze Spur Gears are used versus straight cut gears to ensure the quietest operation possible,
High Impact Sight Glass
A clear high-impact polycarbonate sight glass allows visual inspection of the fuel entering into the system.
The DFS780 is powered by your ignition and can be run independently or in parallel with the stock fuel pump.
Choose the Best Diesel Fuel System for You
Supplied preset boost switch activates pump only under load, reducing wear & tear on the DFS780.
• Clear high-impact polycarbonate sight glass allows visual inspection of fuel
• Helical bronze spur gear pump design runs quieter than straight cut gears
• IP56 Marine Grade (protected against dust intrusion and powerful water jets)
• Contoured CNC machined manifold passages maintain flow to reduce pressure drop
• 1/8” NPT fuel pressure gauge port
• Viton seals which are compatible with most diesel and bio-diesel fuels
• Typical installation time is two hours (plug and play - no modifications to fuel tank)
• Easily reversible to stock - No permanent modification to the vehicle
• Built in the U.S.A.
DFS780 Fuel System FAQ
Boost Operated Kit (Part-Time)
Relay Controlled Kit (Full-Time)
DFS780 Fuel System Wins Best New Product
It’s always great to be recognized. You work hard, perform at your peak, and put your best foot forward to ensure success, and that perseverance can create some great results.aFe POWER is extremely pleased to announce that the new DFS780 Diesel Fuel System was chosen by SEMA Members as the Top New Performance Street Product at the 2015 SEMA Show in Las Vegas!
SEMA is the undisputed heavyweight when it comes to automotive shows, with product manufacturers entering over 3,000 new products for consideration, and the DFS780 rocked the vote and won the prestigious Performance Street vote. A testament to aFe POWER’s commitment to engineering and product development, which included over 4 years of designing, production and testing before releasing the DFS780.
DFS780 SEMA 2015 Coverage
Product highlight of the new diesel fuel system offered by aFe Power
A brief look into DFS780 options, advantages, and how it works with your diesel truck.
Water Sepertation Bowl
the water separation bowl allows for visual inspection of the collected water and provides ease of draining using the removable cap.
aFe DFS780 Install Video
aFe and XDP install the brand new system on a Dodge Cummins.