DFS780 Fuel System 17-19 GM Silverado/Sierra 6.6L Duramax
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This item may be on backorder. Please contact us to confirm supplier availability and estimated lead time before ordering.
This product is selected for proper fitment and compatibility with the listed engine application. Our team is available to assist with fitment questions, installation considerations, and supporting components to ensure a smooth install and reliable performance.
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The aFe POWER DFS780 Diesel Fuel System (part number 42-14023) is engineered as a direct-fit upgrade for the 2017 GM 6.6L Duramax.
The diesel fuel in your truck contains contaminants dirt, water and air/vapor which is reducing power and damaging your diesel fuel injectors. aFe's POWER DFS780 Diesel Fuel System, with its patent-pending design, is capable of removing power-robbing debris such as air, water and other contaminants. The DFS780 also boosts fuel pressure ensuring constant availability for the high-pressure pump, improving throttle response and horsepower at all RPMs.
Vehicle Fitment
- 2017 - 2019 Chevrolet Silverado 2500 HD 6.6L Duramax
- 2017 - 2019 Chevrolet Silverado 3500 HD 6.6L Duramax
- 2017 - 2019 GMC Sierra 2500 HD 6.6L Duramax
- 2017 - 2019 GMC Sierra 3500 HD 6.6L Duramax
Features & Benefits
- High-flow lift pump delivers consistent fuel supply and pressure
- Integrated water separation and filtration protects the injection system
- Engineered and tested by aFe POWER
- Direct-fit replacement requiring no permanent modification
Specifications
- Brand: aFe POWER
- Manufacturer Part Number: 42-14023
- SKU: afe42-14023
- Product Line: DFS780
- Part Type: Diesel Fuel System
- Engine Code: L5P
Always verify aFe POWER part number 42-14023 against your vehicle's year, engine, and configuration before ordering.
Shipping Height: 9.0
Shipping Length: 20.0
Shipping Width: 11.0