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AFE DFS780 Fuel System (Boost Activated) 17-19 6.6L GM 6.6L Duramax L5P
AFE DFS780 Fuel System (Boost Activated) 17-19 6.6L GM 6.6L Duramax L5P photo 1
AFE DFS780 Fuel System (Boost Activated) 17-19 6.6L GM 6.6L Duramax L5P photo 2
AFE DFS780 Fuel System (Boost Activated) 17-19 6.6L GM 6.6L Duramax L5P photo 3
AFE DFS780 Fuel System (Boost Activated) 17-19 6.6L GM 6.6L Duramax L5P photo 4
AFE DFS780 Fuel System (Boost Activated) 17-19 6.6L GM 6.6L Duramax L5P photo 5
AFE DFS780 Fuel System (Boost Activated) 17-19 6.6L GM 6.6L Duramax L5P photo 6
AFE

AFE DFS780 Fuel System (Boost Activated) 17-19 6.6L GM 6.6L Duramax L5P

MPN: 42-14024
Daily DriverTow PigStreet Performance
$1,000
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Grab the AFE DFS780 Fuel System with Boost Activation 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 boost activated model switches on anytime the supplied present boost switch identifies a certain level of boost, meaning the pump is only working when it needs to, extending the overall life of the pump.

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!

The DFS780 removes the remainder of the power-robbing entrained air, water, and contaminants directly stimulating the performance of your Duramax. 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.

Replacing the fuel filter on your DFS780 is easy and can be replaced with either an AFE or Donaldson filter.

FEATURES:

Clear High-Impact Polycarbonate Sight Glass:

Allows visual inspection of fuel.

Helical Bronze Spur Gears:

Billet 6061-T6 Aluminum Manifold:

Eliminates porosity concerns with cast aluminum.

"Marine Grade" Motor:

Protected against dust intrusion and powerful water jets.

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.

Boost Activated Pump Engagement:

Supplied preset boost switch activates pump only under load, reducing wear and tear on the DFS780 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 Viton Seals:

Compatible with diesel and biodiesel fuels.

Note:

This system is not currently CARB exempt and is not available for sale in California.

Warranty
Warranty based on supplier terms

Diesel Power Products directs warranty claims to the respective manufacturer; coverage and duration depend on that manufacturer and product. Its one-year manufacturer-defect warranty applies only to products manufactured by Power Products Unlimited Inc., not all products it sells. Manufacturer inspection is required; DPP does not pay inspection/return shipping or labor.

Return and warranty information is based on what Diesel Power Products offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.

Diesel Power Products warranty policyView complete warranty

Product conditions

Return and warranty information is based on what Diesel Power Products offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.

Professional installation is recommended.

Return eligibility
Diesel Power Products states a 30-day window from receipt for eligible new, uninstalled, unopened and complete items in original packaging, with prior approval/RMA. Custom tuners and specified opened tools are excluded. Customer pays return shipping; original outbound shipping, including initially free shipping, is deducted. No standard restocking percentage is stated for ordinary approved returns. Based on what Diesel Power Products offers.
Return window
Not stated for this product; see supplier terms
Restocking fee
See supplier terms; no product-specific fee stated
Return shipping
Based on the supplier’s return policy; see terms
Made to order
No
Backorder status
Not backordered
Cancellation
Subject to supplier terms; contact FullSpecDiesel before requesting cancellation
Warranty provider
Diesel Power Products
Warranty duration
Product-specific duration not stated; see supplier terms
Compatibility
Listed for specific vehicle configurations
Legal use
Street legal
Processing estimate
3–7 business days supplier processing
Shipping
Shipping calculated at checkout
Signature
No signature requirement
Supplier
Diesel Power Products

Product compatibility is based on the vehicle and product information provided. Review your selected truck, product options, measurements, modifications, and installation requirements before ordering.