Availability
Fuel Injection System Wiring Harnesses
Fuel Injection System Wiring Harnesses, Holley EFI, Ford V8, Universal MPFI, with Main, Power, Injector Harnesses, for HP, Dominator ECU, Kit
Part Number: HLY-558-508
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Fuel Injection System Wiring Harnesses, Holley EFI, Main Power Harness, Coyote Ti-VCT, Plug-and-Play, for Dominator/HP EFI Systems, Ford, 5.0L, Each
Part Number: HLY-558-319
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Wiring Harness, Fuel Injector, FAST XFI, Chevy, 18736542 Firing Order, Each
Part Number: FST-301201
Estimated Ship Date: Apr 22, 2026 if ordered today
Estimated Ship Date: Apr 22, 2026 if ordered today
Wiring Harnesses, Holley EFI, Main Harness, 24X LS TBI, for Terminator, Terminator Stealth, Throttle Body Systems, Chevy, Each
Part Number: HLY-558-111
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Wiring Harness, Fuel Injector, FAST XFI, Ford, Each
Part Number: FST-301204
Not Yet Reviewed
Estimated Ship Date: Apr 22, 2026 if ordered today
Estimated Ship Date: Apr 22, 2026 if ordered today
Wiring Harnesses, Holley EFI, Main Harness with Stock Coils, 7.3L Godzilla, Ford Each
Part Number: HLY-558-140
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Adapter cable, CD-7/CD-7L Plug & Play Adapter Harness for Holley Dominator and HP EFI, Each
Part Number: AVM-30-2214
Not Yet Reviewed
Estimated Ship Date: Mar 3, 2026 if ordered today
Estimated Ship Date: Mar 3, 2026 if ordered today
Fuel Injection System Wiring Harnesses, FiTech, EFI, TPS Splitter, Gm 3 Pin, Each
Part Number: FIF-62020
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
Fuel Injection System Wiring Harnesses, Holley EFI, Terminator Stealth 2X4, Primary Throttle Body Sub Harness, Pre-Terminated, Plug-and-Play, Each
Part Number: HLY-558-459
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
HARNESS, FAST ANALOG INPUT KIT
Part Number: FST-301402
Not Yet Reviewed
Estimated Ship Date: Apr 22, 2026 if ordered today
Estimated Ship Date: Apr 22, 2026 if ordered today
INJECTOR HARNESS, LS2-18726543 FIRE
Part Number: FST-301209
Not Yet Reviewed
Estimated Ship Date: Apr 22, 2026 if ordered today
Estimated Ship Date: Apr 22, 2026 if ordered today
Wiring Harness, Fuel Injector, FAST XFI, Chrysler, Dodge, Ram, Each
Part Number: FST-301208
Not Yet Reviewed
Estimated Ship Date: Apr 22, 2026 if ordered today
Estimated Ship Date: Apr 22, 2026 if ordered today
Fuel Injection Systems Wiring Harnesses, Holley EFI, Universal Harness, Four Cylinder, EV14 Injectors, 205 lbs.-hr. with HP/Dominator EFI, Each
Part Number: HLY-558-440
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Emission Wiring Harness, Rear Oxygen Sensor and Fuel Tank Pressure Sensor, Each
Part Number: PRF-60320
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
FT550 6 CYLINDER UNIVERSAL B EXPANSION HARNESS
Part Number: FCH-2002008377
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Fuel Injection Wiring Harness, 10 Channel Peak and Hold Injector Driver Harness, Each
Part Number: AVM-35-3900
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, NTK O2, Wideband, Ford, Lincoln, Mercury, 2-valve, 4.6L, 5.4L, Kit
Part Number: HLY-550-616N
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, NTK O2 Sensor, Wideband, CANBUS, Ford, 4-valve, 4.6L, 5.4L, Kit
Part Number: HLY-550-617N
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Fuel Injections System Wiring Harnesses, Gen III Hemi, Drive-By-Wire Harness, Early Pedal, OE Connectors, Plug-and-Play, Chrysler, Dodge, Jeep, Kit
Part Number: HLY-558-417
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Fuel Injection System Wiring Harnesses, Holley EFI, 2V Modular EFI, with Main, Power, Injector Harnesses, for HP, Dominator ECU, Ford, 4.6-5.4L, Kit
Part Number: HLY-558-505
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Fuel injection wiring harness WIRING HARNESS, FAST XFI MAIN,FORD SCJ MODULAR
Part Number: FST-301150
Not Yet Reviewed
Estimated Ship Date: Apr 22, 2026 if ordered today
Estimated Ship Date: Apr 22, 2026 if ordered today
Wiring Harness, Fuel Injector, FAST XFI, Ford, Each
Part Number: FST-301210
Not Yet Reviewed
Estimated Ship Date: Apr 22, 2026 if ordered today
Estimated Ship Date: Apr 22, 2026 if ordered today
Fuel Injection System Wiring Harnesses, FiTech, EFI, Injector Sub Harness, Delphi Multec 2, Each
Part Number: FIF-70050-24
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
Fuel Injection System Wiring Harnesses, FiTech, EFI, LS Coil Extension Harness, 36 in. Long, Each
Part Number: FIF-70050-26
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
Fuel Injection System Wiring Harnesses, FiTech, EFI, Injector Extension Harness, 6 Position, 24 in.Long, Each
Part Number: FIF-70050-25
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster