SKU: 77706278088

AFE DFS780 Fuel System (Boost Activated) 01-10 6.6L GM Duramax

Sale price$427.50 Regular price$475.00
Save 10%

Pay in installments of $118.75 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 6 - Aug 11

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

AFE DFS780 Fuel System (Boost Activated) 01-10 6.6L GM DuramaxGrab the AFE DFS780 Fuel System with Part Time Operation for your Duramax powered Chevy or GMC and be amazed with the difference between AFE's fuel system vs other aftermarket brands. Four years of testing is what it takes to make a fuel system perfect, and AFE spent the time to make sure that they developed a system that has no rival. Instead of a lengthy and time consuming installation like other brands, the DFS780 installs in just a few hours for

Grab the AFE DFS780 Fuel System with Part Time Operation for your Duramax powered Chevy or GMC and be amazed with the difference between AFE's fuel system vs other aftermarket brands. Four years of testing is what it takes to make a fuel system perfect, and AFE spent the time to make sure that they developed a system that has no rival. Instead of a lengthy and time consuming installation like other brands, the DFS780 installs in just a few hours for immediate use. The part time operation model works by monitoring your boost, thus engine load, to keep your Duramax roaring with consistent power as it demands it.

It's easy to get caught up in the aftermarket excitement, especially with things that add an instant boost in awesomeness. A bigger-better suspension system, great injectors, roaring exhaust, an air guzzling cold-air intake; these all deliver kick in the pants power gains, and let's face it, are just plain fun. But it is important to remember that adding all these aftermarket parts require you to strike a balance with all aspects of your truck, and a very important aspect is fueling. In fact an upgraded fuel system becomes increasingly more important with each aftermarket item, failure to replace or improve your stock lift pump could leave you high and dry!

Enter AFE's DFS780 Fuel System, this powerful system does not require you to modify your fuel tank, instead it uses your existing lift pump and fuel filter system as an extra line of defense against contaminants common in diesel fuel. As such, the DFS780 removes the remainder of the power-robbing entrained air, water, and contaminants directly stimulating the performance of your Cummins. You'll also notice improved throttle response as well as increased horse power and torque at all RPMs.

Unlike other brands, AFE designed the DFS780 as a single filter system; other brands use two filters, one for the fuel and another to separate water. Instead, AFE integrated clear water separation bowl attached to the high-efficiency fuel filter eliminating the need and expense of replacing two filters. The water separator bowl is reusable and can be emptied easily. AFE recommends changing the DFS780 fuel filter every 10 to 20 thousand miles.

While the DFS780 can definitely be equipped to a completely stock vehicle, you will notice the most gains with an assortment of aftermarket parts that require better fuel and better fueling. Each DFS780 unit is tested at AFE to ensure peak performance, the unit is flowed and rated at a minimum of 2.0gpm (gallons per minute), this rating can support over 2000HP.

Along with added horsepower the DFS780 will also increase the performance of your truck while towing. By proving enough fuel for even the toughest towing situations you'll notice almost no loss of power.

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: 77706278088

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 6 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
R
Verified Purchase
Rose kennly pierre
Alexandria, US
★★★★★ 4
Comfortable and Stylish Shoes
Size: 8.5, Color: British Tan/Ivory
These shoes are very comfortable and stylish. The quality feels great, and they fit perfectly. I can wear them for a long time without discomfort. They look elegant with both casual and dress clothes. Definitely worth the price and I would recommend them to others. ⭐⭐⭐⭐⭐
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
J
Verified Purchase
Josh R.
New York, US
★★★★★ 5
Great Shoe
Size: 10.5 Wide, Color: Black Leather/Black
Great shoe! Especially for those that are on the move in a professional setting for a lot of the day. The only issue I’ve had with these so far are my shoe laces are warping. The shoe itself is holding up great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2026
G
Verified Purchase
G. Mays
Alexandria, US
★★★★★ 5
A great purchase
Size: 10.5, Color: British Tan/Ivory
These shoes are very comfortable and attractive. Lots of people noticed them when I first wore them. I would not consider them the most dressy shoes you can buy, but they work for "business casual" and most other outfits (but not shorts).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
S
Verified Purchase
Shahbaz
New York, US
★★★★★ 4
All-Day Comfort for 10+ Hour Workdays. Finally Found a Pair That Holds Up
Size: 12, Color: Black Leather/Black, Size: 12, Color: Black Leather/Black
After years of trying different “comfortable” dress shoes, this is the first pair I’ve owned that I can wear for a full 10+ hour workday without counting down the minutes to take them off. For context, I’m a retail district manager. I’m on my feet most of the day walking stores, standing in conversations, moving constantly. I’ve owned Clarks, Rockport, and even higher-end dress shoes, and while some started out comfortable, none of them held up for an entire day without foot fatigue setting in. These Cole Haan shoes are different. What stands out: All-day comfort: No mid-day foot pain, even after long shifts. Solid construction: Genuine leather that takes and holds a polish well. Supportive sole: Noticeably helps with impact from constant walking. Great value: Performs better than shoes I’ve paid significantly more for. I also appreciate that they hit a nice middle ground stylistically; more business casual than formal, but still sharp enough for most professional environments. For additional context, I am a heavier individual and tend to wear down the outer (lateral) edge of my shoes first. That pattern holds true here as well. The only drawback: After about two months of wearing them 5 days a week (purchased January 7th), the sole shows more wear than I would expect at this point. It’s not a dealbreaker, but it’s the reason I’m giving 4 stars instead of 5. I’ll be including a comparison photo between the worn pair and a new pair for reference. That said, I still expect to get around 8–10 months of use out of them, which at this price point is more than fair. Bottom line: If you need a comfortable, reliable, and reasonably priced work shoe for long days on your feet, these outperform just about everything else I’ve tried, and that’s why I bought a second pair.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
A
Verified Purchase
Amazon Customer
Draper, US
★★★★★ 5
Great Shoes
Size: 10, Color: Cognac
Love these shoes super comfortable and look great. Everyone asks me where I got them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026

recommand products