Holley Ignitions & Electrical

Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, NTK O2, Wideband, GM, LS2, LS3, LS7, Kit

Part Number: HLY-550-607N

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Estimated Ship Date: Oct 16, 2025 if ordered today

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Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, NTK O2 Sensor, Wideband, CANBUS, Ford, 4.6L, Kit

Part Number: HLY-550-628N

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Estimated Ship Date: Oct 16, 2025 if ordered today

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Wiring Connector Replacement Parts, Holley EFI, Replacement, Terminal Pins, Male, Molex MX150, 16-20 gauge wire, 100-piece, Set

Part Number: HLY-571-112

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Estimated Ship Date: Tomorrow

Throttle Position Sensors, Replacement, Pro-Jection, Multi-Port, 1-barrel, 2-barrel, Each

Part Number: HLY-543-3

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Oct 16, 2025 if ordered today

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Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, NTK O2, Wideband, CANBUS, Universal, MPFI, Kit

Part Number: HLY-550-604N

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Estimated Ship Date: Tomorrow

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Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, O2 Sensor, for GM TPI, Holley Stealth Ram, Kit

Part Number: HLY-550-601N

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Estimated Ship Date: Oct 16, 2025 if ordered today

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Crank Trigger Wheels, Holley EFI, Replacement, 12-1X, Hall Effect, 6.25 in. Diameter, Aluminum, Silver, Chevy, LS, Small Block, Each

Part Number: HLY-556-185

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Estimated Ship Date: Oct 16, 2025 if ordered today

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Engine Management Systems, Terminator X, Up to 8-Injectors, 8-Coils, Plug-and-Play, Analog Inputs, Controller, Chevy, Early LT, 5.3L, 6.2L, Kit

Part Number: HLY-550-1600

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Estimated Ship Date: Oct 16, 2025 if ordered today

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Engine Management Systems, Terminator X MAX, 8-EV1 Injectors, 8-Coils, Drive-by-Wire, 3.5 in. Controller, Chrysler, Dodge, 5.7L, 6.4L, Non-VVT, Kit

Part Number: HLY-550-1424

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Estimated Ship Date: Oct 14, 2025 if ordered today

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Weatherproof Connectors, Holley EFI, Ford Coyote, Cam Position Sensor Connector, Sealed, 3-pin, Female, Black Plastic, with Pins, Seals, TPA, Each

Part Number: HLY-570-239

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Estimated Ship Date: Tomorrow

Engine Management Systems, Terminator X, Up to 8-EV6 Injectors, 8-Coils, Analog, O2 Sensor, Plug-and-Play, USB Tuning Cable, Ford, 4.6L, 5.4L, Kit

Part Number: HLY-550-1221

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Estimated Ship Date: Oct 16, 2025 if ordered today

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Engine Management Systems, Terminator X, Up to 8-EV1 Injectors, 8-Coil, Analog, O2 Sensor, Plug-and-Play, Controller, Dodge, Chrysler, 5.7-6.4L, Kit

Part Number: HLY-550-1224

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Connector Kits, Replacement, Connectors, Male, Pins, Grommets, Stealth Ram, Power Pack, for MAP, IAC, TPS, Coolant, Air Intake, Sensors, Kit

Part Number: HLY-534-213

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Estimated Ship Date: Oct 16, 2025 if ordered today

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Weatherproof Connectors, Holley EFI, Hemi, Knock Sensor Connector, Main Harness, DMS 2-pin, Female, Black Plastic, includes Pins, Seals, TPA, Each

Part Number: HLY-570-230

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Estimated Ship Date: Tomorrow

Wiring Connector Replacement Parts, Holley EFI, Replacement, Weather Seal, White, Metripack, 18-22 gauge wire, 100-piece, Set

Part Number: HLY-571-108

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Ignition Coil Spacer, Plastic, Black, 0.575 in. Tall, Chevy, Small Block Gen V, Set of 16

Part Number: HLY-241-189

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Weatherproof Connectors, Holley EFI, Ford Coyote/Modular, TPS Connector, Main Harness, DMS 3-pin, Female, Black Plastic, with Pins, Seals, TPA, Each

Part Number: HLY-570-231

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Estimated Ship Date: Tomorrow

Weatherproof Connectors, Holley EFI, Hemi Cam/Crank Connector, Main Harness, APEX 1.2, 3-pin, Female, Black Plastic, with Pins, Seals, TPA, Each

Part Number: HLY-570-234

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Estimated Ship Date: Oct 17, 2025 if ordered today

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Distributors, Holley EFI, Dual-Sync, Hall Effect, Computer-controlled, Male/HEI, Black Cap, Black Housing, Chrysler, Dodge, Plymouth, 6.3L, 6.6L, Each

Part Number: HLY-565-209BK

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Estimated Ship Date: Oct 16, 2025 if ordered today

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Wiring Connector Replacement Parts, Holley EFI, Replacement, Seal Plugs, Weatherpack, Brown, 100-piece, Set

Part Number: HLY-571-134

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Crank Trigger Wheels, Holley EFI, Replacement, 12-1X LS, Hall Effect, 7.5 in. Diameter, Aluminum, Silver, Universal, Each

Part Number: HLY-556-181

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Estimated Ship Date: Oct 16, 2025 if ordered today

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Distributors, Holley EFI, Dual-Sync, Hall Effect, Computer-controlled, Male/HEI, Black Cap, Steel Gear, Polished Housing, Oldsmobile, 4.3-7.5L, Each

Part Number: HLY-565-206

3.2 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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Weatherproof Connectors, Holley EFI, GM, MPFI/TPI, Main Harness Connectors, J1A/J1B Connectors, Pins, Seals, Cavity Plugs included, Kit

Part Number: HLY-570-102

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Estimated Ship Date: Oct 16, 2025 if ordered today

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Fuel Injection System Wiring Harnesses, Holley EFI, Replacement, Main Harness, Terminator X, Terminator Max X Systems, Ford, Mustang, 5.0L, Each

Part Number: HLY-558-513

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Estimated Ship Date: Oct 16, 2025 if ordered today

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Weatherproof Connectors, Holley EFI, MAP Connector, Main Harness, Weather Pack, 3-cavity, Tower, Green Plastic, with Pins, Seals, TPA, Each

Part Number: HLY-570-212

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Estimated Ship Date: Tomorrow