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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 955 reviews
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Product Reviews
★★★★★ 5
Great buy
Size: Small, Color: Pink
❤️ them! Great price
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2026
★★★★★ 5
Amazing and cute
Size: Small, Color: Pink, Size: Small, Color: Pink
I have a puppy who absolutely adores her toys, especially now that she’s teething! I picked out some pink ones that are just right for her—she’s only 2 1/2 months old and weighs 2 lbs. The best part is the variety of toys she loves to play with.
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Reviewed in the United States on June 10, 2026
★★★★★ 5
Built to Chew, Designed to Last – A Teething Pup’s Best Friend!
Size: Small, Color: Pink
These puppy chew toys are adorable and well made! I picked the pink set for my girl, but they come in several color options to suit any pup’s personality. So far, she hasn’t destroyed a single one — which says a lot, because she’s definitely in her teething phase.
That said, I do wish she’d chew on the toys more than she chews on me — ha! She seems to enjoy them most when I’m playing with her, so they’ve become a fun bonding tool. I also really appreciate that a couple of the toys can hold small treats. That keeps her entertained a bit longer and gives my hands a much-needed break.
Overall, this is a great little starter kit for teething puppies. Durable, cute, and interactive — we’re both happy with it!
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Reviewed in the United States on May 20, 2025
★★★★★ 1
Bad Qualify - Toxic Plastic, Not Good or Safe
Size: Small, Color: Purple
These are toxic micro-plastic toys. They are especially bad for teething puppies sharp teeth. Within an hour of playing, pieces began to chip off and easily falling apart.
If you don’t heed this warning to buy something else, at least monitor your dog when in use, never leave unattended and plan to throw them away when they start to break down.
It’s a shame because the set is really cute and has ideal texture my dog loved with a nice variety of shapes. Not worth the risk though for a member of the family.
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Reviewed in the United States on February 26, 2026
★★★★★ 4
its okay
Size: Small, Color: Green
This set of 4 puppy toys is overall decent and a good option for light play. The toys are cute, soft, and my puppy enjoyed playing with them right away. They are great for gentle chewing, carrying around, and interactive play, especially for younger or less aggressive puppies.
However, if your dog is very active or a strong chewer, these toys don’t last very long. In our case, they started to tear fairly quickly with regular play. They’re definitely not indestructible and won’t hold up well for high-energy dogs who like to chew hard.
Overall, I’d say these toys are fine for the price and okay for casual use, but they’re better suited for calmer puppies rather than very active ones. If your puppy loves intense chewing, you may need something more durable.
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Reviewed in the United States on December 17, 2025