SKU: 13956164609

AFE 42-12031 DFS780 Fuel System (Full-Time Operation)

Sale price$450.00 Regular price$500.00
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  • CAN

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Description

AFE 42-12031 DFS780 Fuel System (Full-Time Operation)The AFE 42 12031 DFS780 Fuel System with Full Time Operation for your 2005 2010 Dodge 5. 9L 6. 7L Diesel offers you a complete fuel system solution to replacing the factory lift pump in your Dodge 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 42-12031 DFS780 Fuel System with Full-Time Operation for your 2005-2010 Dodge 5.9L/6.7L Diesel offers you a complete fuel system solution to replacing the factory lift pump in your Dodge 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

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. 


WARRANTY INFO:
1 Year
Shipping Restrictions Apply This product can not be shipped to these states/provinces: CA
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:
  1. 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
SKU: 13956164609

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deloris s.
Port Orchard, US
★★★★★ 5
Comfortable Shoes
Size: 12, Color: Navy Blazer/Ivor
This is the second time I purchased this style of shoes. They are extremely comfortable. They can be worn on casual and business events.
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Reviewed in the United States on May 25, 2026
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LindyB
Fort Morgan, US
★★★★★ 5
Great dressy sneaker to wear with business casual or jeans
Size: 11, Color: British Tan/Ivry
I got these for my husband to wear with jeans or business casual dress pants. They look sharp and professional and dress up jeans if you're going out. He says they fit comfortably and he can walk on them all day without his feet hurting. They are beautiful genuine leather so they don't get stinky. I got my husband's normal size and they fit to size.
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Reviewed in the United States on February 11, 2026
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timothy scalabrelli
Phoenix, US
★★★★★ 4
Comfortable
Size: 9, Color: Black/Ivory
Most comfortable and roomy shoes I ever wore. Great for insoles. Looks nice too. The base of the shoe is a bit too thick but it’s fine.
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Reviewed in the United States on September 5, 2025
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BBZ
Phoenix, US
★★★★★ 5
Very nice, but sizing is inconsistent
Size: 10 Wide, Color: Ivory/White/British Tan
All of these Cole Haan shoes are extremely well made and I like the styling. On the other hand, the sizing is very inconsistent and you may end up having to do a lot of returns trying to find the right size. Then if you get a different color of it, you may find the sizing different yet again. If you find your right zie, they are really nice shoes at a very reasonable price for the quality.
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Reviewed in the United States on February 6, 2026
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Lofidelityrockr
Houston, US
★★★★★ 5
I love this brand. These shoes look and fit great!
Size: 13 Wide, Color: Black/White/Black
I love wearing Cole Haan shoes. This is the second pair I’ve owned and the style just gets me. I’ve worn these to work at a great professional job every day, not just casual Friday. I wear these when I head out shopping or to dinner. They are functional, comfortable, built for regular and bigger wider feet and comfortable. I am 6 feet tall and my feet have changed size over the years to me needing a wider shoe to relieve pressure on my toes and front wide porting of my foot. So the 13W feels great and still walks the same as a regular 14 but more comfort for me. They look amazing and qualify in some offices as dress shoes (depending on company rules they will justify a sneaker as a shoe with the tan colored “gum” sole as a sneaker) so check company policy. The black sole on this makes it look more dressy. I am switching out the laces to match my previous Cole Haan because I think the white shoelaces look better. As an adult, aside from my Kenneth Cole boots Reaction boots and Doc Marten’s these are the only shoes I will pay 3 digits for. This looks like skater shoes but with a more mature look.
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Reviewed in the United States on December 19, 2025

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