Availability
Fuel Injection System Components, Holley EFI, CAN to USB Dongle, Communication Cable, 8 ft. Long, for Holley, Sniper, Terminator X, EFI Systems, Each
Part Number: HLY-558-443
Estimated Ship Date: Today
Estimated Ship Date: Today
Fuel Injection System Wiring Harness, Holley EFI, Main Power, Universal, Speed Density/Throttle, 13 ft. Long, for Avenger, HP, Dominator EFI, Kit
Part Number: HLY-558-308
Estimated Ship Date: Today
Estimated Ship Date: Today
Fuel Injection System Components, Holley EFI, Sealed USB Data Cable, 7 ft. Long, for Avenger HP, Dominator EFI Systems, Each
Part Number: HLY-558-409
Estimated Ship Date: Today
Estimated Ship Date: Today
Fuel Injection System Wiring Harnesses, Holley EFI, Crank/Cam Ignition Harness, Plug-and-Play, for Ferrous Hall Effect to HP/Dominator Systems, Each
Part Number: HLY-558-431
Estimated Ship Date: Today
Estimated Ship Date: Today
Wiring Harnesses. Holley EFI, Replacement, Wideband O2 Adapter Harness, Terminator EFI Systems, Pre-Terminated, Plug-and-Play, Each
Part Number: HLY-558-463
Estimated Ship Date: Today
Estimated Ship Date: Today
Electrical System Surge Protectors, Holley EFI, Transbrake Protection Module, ECU Input, Each
Part Number: HLY-554-128
Estimated Ship Date: Today
Estimated Ship Date: Today
Wire Harnesses, Sniper EFI, Input/Output Harness, Throttle Body Injection, Speed Density Metered, 10-pin Male Connector, Kit
Part Number: SNE-558-491
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Wiring Harnesses, Holley EFI, HEI Distributor, Adapter Harness, Small Cap, Computer Controlled, for Avenger, HP, Dominator EFI Systems, Each
Part Number: HLY-558-304
Estimated Ship Date: Today
Estimated Ship Date: Today
Fuel Injection System Components, Holley EFI, CAN Extension Harness, 4 ft. Long, Pre-Terminated, Plug-and-Play, for Racepak, External CAN Drives, Each
Part Number: HLY-558-424
Estimated Ship Date: Today
Estimated Ship Date: Today
Fuel Injection System Components, Holley EFI, CAN Extension Harness, 8 ft. Long, Pre-Terminated, Plug-and-Play, for Racepak, External CAN Drives, Each
Part Number: HLY-558-425
Estimated Ship Date: Today
Estimated Ship Date: Today
Fuel Injection System Components, Holley EFI, CAN Extension Harness, 12 ft. Long, Pre-Terminated, Plug-and-Play, for Racepak/External CAN Drives, Each
Part Number: HLY-558-426
Estimated Ship Date: Today
Estimated Ship Date: Today
Fuel Injection System Components, Holley EFI, 1/8 in.-NPT, Sensor Block, Four Independent Ports, Aluminum, Black Anodized, Each
Part Number: HLY-534-35
Estimated Ship Date: Today
Estimated Ship Date: Today
Fuel System Dampers, Billet Aluminum, Black Anodized, 40-70 psi, -6 AN Male Threads Inlet/Outlet, Standard Range, Each
Part Number: HLY-12-1002
Estimated Ship Date: Today
Estimated Ship Date: Today
Fuel Injection System Components, Holley EFI, CAN Extension Harness, 9 in. Long, Pre-Terminated, Plug-and-Play, for Racepak/External CAN Drives, Each
Part Number: HLY-558-428
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
Injection System Controllers, Water/Methanol Injection, Driver Module, 2-channel, with Wire Harness, for HP EFI or Dominator EFI, Each
Part Number: HLY-554-115
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Sensors, Replacement, Air Temperature, Brass, 3/8 in. NPT, for Holley EFI, Pro-Jection Systems, Each
Part Number: HLY-534-20
Estimated Ship Date: Today
Estimated Ship Date: Today
Wiring Harness Adapters, Sniper EFI 1 Harness to Sniper EFI 2 System, Pre-Terminated, Each
Part Number: SNE-558-489
Estimated Ship Date: Today
Estimated Ship Date: Today
Timing Cover Bolts, Replacement, Hex Head, Steel, Cadmium Plated, for High-Mount Accessory Drive System, with OF Pan Only, Ford, 7.3L, Godzilla, Kit
Part Number: HLY-97-411
Not Yet Reviewed
Estimated Ship Date: Mar 6, 2026 if ordered today
Estimated Ship Date: Mar 6, 2026 if ordered today
Fuel Injection System Wiring Harnesses, Holley EFI, CAN Adapter Harness, Male to Female Adapter, 8 ft. Long, for Racepak or CAN Device, Each
Part Number: HLY-558-453
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Fuel Injection System Wiring Harnesses, Holley EFI, CAN Adapter Harness, Male to Female Adapter, 12 ft. Long, for Racepak or CAN Device, Each
Part Number: HLY-558-454
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Alternator Brackets, Bracket Spacer, Aluminum, Natural Finish, Accessory Drives, Wet or Dry Sump System, Chevy, Gen V LT4, Engines, Each
Part Number: HLY-97-255
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Spacers, Power Steering Add-on, Bracket Spacer, GM LT4 System, Wet or Dry Sump, Aluminum, Black Finish, Kit
Part Number: HLY-97-262BK
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Idler Pulleys, Replacement, Smooth, Composite, Black, 70mm Diameter, GM LT5, with Accessory Drive Systems, Chevy, 6.2L, Each
Part Number: HLY-97-266
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Fuel Pressure Regulators, Carburetor Bypass Style, Return, 4.5-9 psi, Black, One 3/8 in. NPT Female Inlet, One 3/8 in. NPT Female Outlet, Each
Part Number: HLY-12-887
Estimated Ship Date: Today
Estimated Ship Date: Today
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