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AFE DFS780 Fuel System; Boost Activated (17-19 6.6L Duramax Silverado 3500 HD)Find parts that fit my vehicle

Item SHS3631
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      Product Information

      Features, Description, Q&A, Specs & Installation

      Features

      • DFS780 Fuel System Boost Activated
      • Boost‑Activated Operation At Approximately 8‑10 Psi
      • 187 GPH Fuel Flow @ 8‑10 Psi (Supports 2000+ HP)
      • Billet 6061‑T6 Aluminum Manifold
      • CNC‑Machined Contoured Passages For Reduced Restriction
      • Clear Polycarbonate Sight Glass For Visual Fuel Inspection
      • Helical Bronze Spur Gears (Quieter & Forgiving With Contaminants)
      • PEEK Bearing Surfaces To Minimize Noise & Wear
      • Marine‑Grade Sealed Motor – Dust & Water Resistant
      • O.E.‑Quality Viton Seals (Diesel & Biodiesel Compatible)
      • Built‑In Bypass Allows Operation Of Stock Fuel Pump Under Light Load
      • 1/8" NPT Fuel Pressure Gauge Port
      • Deutsch‑Style Plug‑And‑Play Harness With Battery Relay
      • Four-Hour Installation
      • Two‑Year Manufacturer Warranty
      • Fits 2017-2019 6.6L Duramax Silverado 3500 HD Models

      Description

      Dual-Stage Filtration for Superior Fuel Purity. The AFE DFS780 Fuel System is equipped with a high-efficiency dual-stage filtration process that removes water, particulates, and contaminants before they reach your engine. This advanced setup ensures only the cleanest fuel is delivered, enhancing engine longevity and maintaining peak performance. Designed to meet the demands of high-output diesel engines, this system keeps your injection components protected under extreme operating conditions.

      High-Flow Performance Under Load. Engineered for maximum fuel delivery, the AFE DFS780 Fuel System maintains consistent high-volume flow rates even under heavy engine loads or performance tuning. Its powerful motor and optimized fuel pump ensure that your engine never starves for fuel, supporting aggressive driving, towing, or racing applications with unwavering reliability. This constant pressure enhances throttle response and overall engine efficiency.

      Installation. Putting this AFE DFS780 Fuel System; Boost Activated on your 6.6L Duramax Silverado 3500 HD takes 4 hours to install.

      Warranty. There is a 2-year manufacturer warranty on this product.

      Application. The AFE DFS780 Fuel System; Boost Activated fits 2017-2019 6.6L Duramax Silverado 3500 HD models.

      AFE 42-14024

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      Installation & What's in the Box

      Installation Info

      Installation Time

      (approx) 4 Hours

      Difficulty Level:

      Light to Moderate mechanical skill required.

      Installation Guides

        No guide available for this part yet.

      What's in the Box

      • (1) Boost‑Activated DFS780 Fuel Pump System
      • (1) Pre‑Installed Boost Sensor Switch
      • (1) Deutsch Plug‑And‑Play Wiring Harness With Relay
      • (1) Steel Mounting Bracket
      • (1) NPT Pressure Gauge Port
      • Instructional Manual

      Questions & Answers

      No questions about this product yet. Ask the First Question

      Will It Fit My Silverado 3500

      • 6.6L V8 Duramax - 17, 18, 19