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Ships within 48 hours · Estimated delivery Jul 21 - Jul 26
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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 7 reviews
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Product Reviews
★★★★★ 4
Cute size but didn’t last
Color: Blue
I love Kong toys. I bought for my two puppies. One is already broke. But still works like a good tug of war rope with a bonus chew bone.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
★★★★★ 3
End of rope your dog or puppy can get the sting in it's mouth
Color: Blue
My puppy loves this toy ,but she can pull the string fiber off the rope so you have to watch that they don't eat the string. Wish the rope was made different with a hard knot at the ends. But my puppy loves the toy .I will just fix the end myself.
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Reviewed in the United States on December 5, 2025
★★★★★ 1
Flimsy
Color: Pink
Rope broke with first pull during playtime. Also is very small.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Loves it!
Color: Blue
This was a hit with my 9 month old puppy! He loves it! It's not his favorite toy but its not his least favorite either! I did have to retie the knots after he worked them out and that was difficult but doable!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 10, 2026
★★★★★ 5
my puppy's favorite!
Color: Pink
I recently bought this chew toy for my puppy, and it has been a fantastic addition to his toy collection!
Durability: This toy is impressively durable. My puppy loves to chew, and it has held up really well against his enthusiastic gnawing.
Design: The design is great! It’s the perfect size for my puppy to carry around, and the colors are vibrant and fun. He loves playing with it!
Engagement: It keeps him entertained for hours. The texture seems to satisfy his chewing instincts, and it also helps with teething discomfort.
Safety: I feel good knowing that it’s made from non-toxic materials. I’ve had no issues with pieces breaking off or causing any problems.
Overall, I highly recommend this chew toy for any puppy owner. It’s durable, and engaging, and my puppy absolutely loves it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 21, 2024
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