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USA
- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 6 - Jul 11
For Your Every Summer RSVP, with Code: SUMMER15
Description
AFE 42-12021 DFS780 Fuel System (Full-Time Operation)The AFE 42 12021 DFS780 Fuel System with Full Time Operation for your 2003 2004. 5 Dodge 5. 9L Diesel offers you a complete fuel system solution to replacing the factory lift pump in your Ram pickup. The fuel in your truck contains contaimants, water and air vapor which reduces power and can cause damage to your injectors. The AFE DFS780 Fuel System features a patent pending design capable of removing power robbing entrained air, water and
The AFE 42-12021 DFS780 Fuel System with Full-Time Operation for your 2003-2004.5 Dodge 5.9L Diesel offers you a complete fuel system solution to replacing the factory lift pump in your Ram pickup. The fuel in your truck contains contaimants, water and air/vapor which reduces power and can cause damage to your injectors. The AFE DFS780 Fuel System features a patent-pending design capable of removing power-robbing entrained air, water and contaminants. The DFS780 ensures constant availability for your CP3 injection pump, while improving throttle response and horsepower at all RPMs.
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.
Horsepower & Flow:
The DFS780 can be used on a totally stock truck, it was engineered for modified vehicles. BSFC (Brake Specific Fuel Consumption) for most modern turbocharged diesel engines is about 0.36 lbs/HP/hr. Since #2 diesel weighs about 7 pounds/gallon, which gives us about 19.5 HP/gallon/hr. The DFS780 will flow enough fuel (at rated pressure) to support over 2000 HP.
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 can be run independently or in parallel with the stock fuel 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 Seals:
Compatible with diesel and biodiesel fuels.
Features:
- Bypasses OE Fuel Pump (Full-Time Operation)
- "Worry Free" 2 Year Warranty
- Built In The U.S.A
WARRANTY INFO:
1 Year
Disclaimer: GAP is in no way affiliated with Cummins or any of its subsidiaries or related companies, and that Cummins has not authorized the sale of any of GAP's parts, and has not tested or approved any of GAP’s parts for use in genuine Cummins brand products.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 2195 reviews
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Product Reviews
★★★★★ 5
Bang for your buck
Scent: Unscented, Size: 2 Fl Oz (Pack of 1)
Incredible bang for your buck! Has kept my wife and I’s skin hydrated and has brought a lot of nice color and even smoothed out some dark spots. It’s fragrance free which is awesome for sensitive skin. And it’s easy to use!
Make sure you keep it in a cool place cause it can melt!
Fantastic product will continue to buy this
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
★★★★★ 5
Natural remedy for treating keratosis pilaris (KP).
Scent: Unscented, Size: 2 Fl Oz (Pack of 1)
The most pleasant surprise about this tallow balm is that it’s a very effective natural remedy for treating keratosis pilaris (KP). It’s intense moisturizing properties help smooth the "chicken skin" bumps and reduce redness. It’s a natural alternative to conventional lotions by nourishing the skin barrier without harsh chemicals. I couldn’t believe my eyes when I saw the skin texture on the back of my upper arms after rubbing it in. My skin looks and feels much improved when I use it and hopefully will continue to improve over time with continuall use! If you have not found an all natural product to help smooth and reduce KP bumps give this tallow balm a try!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
★★★★★ 5
Smells Great, Feels Great, Lasts Long
Size: 4 Fl Oz (Pack of 1), Unit Count: 4.0
This stuff smells great and it keeps dandruff away. It lasts a very long time and leaves your hair feeling healthy. A little bit goes a long way so it’s definitely worth the money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 20, 2025
★★★★★ 5
Came Early And Loved The Product
Size: 4 Fl Oz (Pack of 1), Unit Count: 4.0
Came Early Love The Product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
★★★★★ 5
Awesome product.
Size: 4 Fl Oz (Pack of 1), Unit Count: 4.0
Works great. Hair was thinning on the sides. This helped to fill it back in. Pleasant smell. Would definitely buy again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2025
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