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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
4.2 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
Perfect
Color: Silver single, Color: Silver single
Excellent salt grinder
This ceramic grinder surprised me for its good quality. The design is very elegant, with the stainless steel part and the glass jar that allows you to easily see how much product is left inside. It feels solid and well built.
The ceramic grinding mechanism works very smoothly and crushes the salt evenly. In addition, it is easy to refill and clean, which is very practical to use in the kitchen every day.
It has a perfect size: it does not take up much space but has good capacity. Without a doubt it is a very useful and beautiful product for the table or the kitchen. I totally recommend it!
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Reviewed in the United States on March 15, 2026
★★★★★ 5
Buy this
Color: Silver single
Nothing fancy,just functional.Priced right.Very satisfied.
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Very nicely made and easily filled for use.
Color: Silver single
Perfect for our kitchen. The ideal sea salt dispenser....and it is fully adjustable from coarse to fine.
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Reviewed in the United States on May 10, 2026
★★★★★ 5
Great quality
Color: Silver single
Just what I was looking for in a salt shaker. It’s on the smaller side and the quality is great. I’m very satisfied with my purchase.
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Great size, design, and 100% metal grinding mechanism
Color: 1pcs-Sliver-304
***PLEASE NOTE: This review is only for the more expensive version here with the all metal grinding mechanism and not the cheaper version that looks the same but has a ceramic grinder that’s also available on this page — hope this helps avoid potential confusion. My advice is to splurge on the metal grinder version.
***UPDATE 3/18/26***
Well, after almost two years of fairly heavy daily use the first flaw has emerged so thought I’d share. Yesterday the silver wrapping on the grinder part came loose making it hard to turn the grinder as it was slipping. I did a quick fix by adding some super glue around the seam at the top of the grinder and that’s done the trick at least for now. I’m leaving my 5-star rating because I remain thrilled with its overall performance and frankly would’ve ordered another one if this fix didn’t work, but so far it appears to be holding. 🤞 So still very happy but just wanted to share in case anyone else experiences this.
***UPDATE 8/18/25***
So I’ve now had this for over a year, and under pretty heavy daily use I’m happy to report it still works as well as the day I bought it. Great product, and it’s a pleasure to use every day.
***UPDATE 10/3/2024***
So, after almost four months of pretty heavy daily use I just wanted to report back that this grinder continues to work perfectly and shows every sign of lasting for years to come. I especially like the glass jar so I can see when I’m running low on black peppercorns, and even though it’s got a small form factor it holds a lot so I don’t have to refill it frequently despite using it multiple times daily. I’m super happy with this product all around and recommend it highly!!!
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Been using this for a few days now and am very happy so far. I’ve used a traditional wood pepper mill my whole life, but now it’s just me so I wanted something smaller and with a glass body so I can easily see when I need to add more peppercorns. I also wanted an all metal grinding mechanism (that this version has for an few dollars more) instead of ceramic, which doesn’t seem to hold up as well, and I definitely wanted no plastic parts involved in the actual grinding either — don’t need any more microplastics in my diet thank you. This one seemed to check all the boxes, and so far it’s been great. Initially it was set to a more fine, powdery grind, but it was super easy to adjust to a more course grind that I prefer and it’s perfect. Overall it seems well built and is very easy to use, and as long as this holds up it’s a definite keeper. I’ll report back if any future mishaps, but as of now I’d recommend this very highly!
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Reviewed in the United States on June 21, 2024