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Shop / Fuel Systems / AFE DFS780 PRO Fuel System (Full Time Operation) 17-19 GM 6.6L Duramax L5P
AFE DFS780 PRO Fuel System (Full Time Operation) 17-19 GM 6.6L Duramax L5P
AFE DFS780 PRO Fuel System (Full Time Operation) 17-19 GM 6.6L Duramax L5P photo 1
AFE DFS780 PRO Fuel System (Full Time Operation) 17-19 GM 6.6L Duramax L5P photo 2
AFE DFS780 PRO Fuel System (Full Time Operation) 17-19 GM 6.6L Duramax L5P photo 3
AFE DFS780 PRO Fuel System (Full Time Operation) 17-19 GM 6.6L Duramax L5P photo 4
AFE DFS780 PRO Fuel System (Full Time Operation) 17-19 GM 6.6L Duramax L5P photo 5
AFE DFS780 PRO Fuel System (Full Time Operation) 17-19 GM 6.6L Duramax L5P photo 6
AFE DFS780 PRO Fuel System (Full Time Operation) 17-19 GM 6.6L Duramax L5P photo 7
AFE DFS780 PRO Fuel System (Full Time Operation) 17-19 GM 6.6L Duramax L5P photo 8
AFE

AFE DFS780 PRO Fuel System (Full Time Operation) 17-19 GM 6.6L Duramax L5P

MPN: 42-24021
Daily DriverTow PigStreet Performance
$808
Ships From Supplier · Ships in 3–7 business days
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Fitment sensitive
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This product is vehicle-specific. Select your year, make, model, engine and transmission to confirm compatibility before adding it to your cart.

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Ensure your L5P Duramax is getting the cleanest, most consistent fuel delivery possible by upgrading with a DFS780 PRO Fuel Pump. This system will not only remove sediment and debris, but also water and air that reduces the overall efficiency of your engine.

This kit from AFE will include all of the necessary components to upgrade your engine for increased power, fuel economy, and even reliability.

Billet 6061-T6 Aluminum Manifold: Eliminates porosity concerns with cast aluminum.

Contoured CNC Machining Of Manifold Passages: Enhances flow through the manifold to reduce pressure drop due to flow restrictions.

Universal Carbon Steel Mounting Bracket: Heavy duty bracket easily mounts with supplied hardware.

"Marine Grade" Motor: Protected against dust intrusion and powerful water jets.

Helical Bronze Spur Gears: Bronze gears more forgiving of contaminants than steel gears. The Helical spur gear design runs quieter than straight cut gears.

Plug and 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.

O.E Quality Viton Seals: Compatible with diesel and biodiesel fuels.

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.