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The aFe POWER DFS780 diesel fuel system for 2017–2019 GM 6.6L L5P trucks is a full-time operation unit that removes air, water and debris from fuel while stabilizing supply to the high-pressure pump. Its patent-pending design improves throttle response and engine output by maintaining cleaner, higher-pressure fuel delivery. Built-in features include clear sight glass, a fuel pressure gauge port and OE-quality seals for reliable service.
aFe Diesel Fuel Systems DFS780 Series 2017 GM Diesel 6.6L V8(td) L5P Full Time Operation 8-10PSI
