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Fuel Injection System Wiring Harnesses

Showing In Stock Items. Show All 19 Items.

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Holley EFI Systems Main Wiring Harnesses for 2011-2017 F-150, MUSTANG - 558-122

Fuel Injection System Wiring Harnesses, Holley EFI, Coyote Ti-VCT, Main Harness, Plug-and-Play, Drive-by-Wire, with Holley Smart Coils, Ford, 5.0L Kit

Part Number: HLY-558-122

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today