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, 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
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
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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