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Description
AFE 42-14021 DFS780 Fuel System (Full-Time Operation)The AFE 42 14021 DFS780 Fuel System with Full Time Operation for your 2011 2016 GM 6. 6L Duramax LML offers you a complete fuel system solution for your Duramax pickup. The fuel in your truck contains contaminants, 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
The AFE 42-14021 DFS780 Fuel System with Full-Time Operation for your 2011-2016 GM 6.6L Duramax LML offers you a complete fuel system solution for your Duramax pickup. The fuel in your truck contains contaminants, 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:
- 8-10 PSI
- Built In The U.S.A.
- Supports 2000+ HP
- Full-Time Operation
- C.A.R.B. OE# D-550-37
- "Worry Free" 2 Year Warranty
WARRANTY INFO:
2 Year
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
4.1 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 4
Works well, worth buying.
Color: Rechargeable with Storage Stand and Box - Black
Works really well. I wish the attachments were easier to get off without feeling like you are going to break them. I use a butter knife to pry it off carefully. I like having the case too, it works well if you need to travel with it.
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Reviewed in the United States on May 31, 2026
★★★★★ 5
Little but mighty
Color: Rechargeable with Storage Stand and Box - Black, Color: Rechargeable with Storage Stand and Box - Black
Love this Frother. It stays charged for a good amount of time. The different speed settings are nice. Love the different attachments as they come in handy for multiple options in the kitchen.
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Reviewed in the United States on June 6, 2026
★★★★★ 5
CIRCLE JOY Rechargeable Handheld Milk Frother Wand with Stand
Color: Rechargeable with Storage Stand and Box - Black
My wife is very with the product. It does everything as described in the listing. It very powerful and comes with 3 attachments and a stand. Love the rechargeable convenience. Cleaning is a snap. Highly recommend it.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
The best hand frother
Color: Pure White, Color: Pure White
UPDATE: I bought this hand mixer in July 2025 and used it almost every day. It’s an incredibly good product, durable, reliable, and very easy to use. It comes with a charger, and the battery lasts a long time also it included a metal stand to hold it. Sadly it stopped working about a week ago (April 2026), but the best part is that it comes with a two-year warranty. It was very easy to contact customer support via email, they responded the same day, and I received a free replacement just a few days later.
The new unit is the same product with the same accessories, but instead of just a stand, it now comes with a charging base, which is a fantastic and very practical upgrade.
This is the best hand frother I’ve ever purchased. Even after almost a year of use, the accessories are still in perfect condition, and the customer service was excellent. I 100% recommend it.
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Reviewed in the United States on May 2, 2026
★★★★★ 5
Great product!
Color: Ultra Violet
This is the best brother out there! Works like a charm the charge stays for weeks and it really has power. Also customer service with this item is really great! Don't hesitate to purchase this item!
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Reviewed in the United States on May 21, 2026