Holley Ignitions & Electrical

MAP Sensors, Holley EFI, 7 Bar Range, 88.4 psi, 1/8 in.-27 NPT, Output 0.5-4.5 V, Stainless Case, for Forced Induction Engines, Each

Part Number: HLY-554-135

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Ignition Coil Wiring Harnesses, Holley EFI, Coyote Ti-VCT, Coil Harness, OE Connectors, Plug-and-Play, for HP EFI, Dominator EFI, Ford, 5.0L, Each

Part Number: HLY-558-322

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Data Acquistion Wiring Harnesses, Holley EFI, I/O Adapter and Terminated Vehicle Harness, for 7 in. Digital Dash, USB Memory Stick Included, Kit

Part Number: HLY-558-434

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Electrical Wires, Holley EFI, Shielded Cable, Black Jacket, 7-conductor, Five 18 gauge Wires, Two 20 gauge Wires, Wideband, 25 ft. Spool, Each

Part Number: HLY-572-100

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Convoluted Tubing, Wire Looms and Wire Sleeves, Holley EFI, Split Wire Loom, Black Nylon, Slip-on Insulation, 1.000 in. I.D., 10 ft. Long, Each

Part Number: HLY-573-110

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Alternators, High-amp, OE Style, Cast Aluminum, Natural Finish, Serpentine Pulley, 130 amps, 12V, Internal Regulator, Chevy, 4.8L, 5.3L, 6.0L, Each

Part Number: HLY-197-301

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Data Acquisition Components, Holley EFI, EGT Probe, 90 Degree, Open End Tip, 32.25 in Harness, 1/4 in. Probe, Stainless Wire Cover, Each

Part Number: HLY-554-178

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Camshaft Sync Pickups, Holley EFI, Cam Sync and Bracket, Hall Effect Sensor, 1/4 in.-20 Magnetic Target, External Dry Cam Drive, Chevy, Big Block, Kit

Part Number: HLY-556-114

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Engine Management Systems, Terminator X MAX, 8-EV1 Injectors, 8-Coil, Trans Control, Sensors, USB Cable, Chevy, LS, 4.8-6.2L, 4x Cam, 58x Crank, Kit

Part Number: HLY-550-920T

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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MAP Sensor Adapters, Replacement, Quick Turn Adapters, 1/8 in., 3/16 in. 1/4 in., for Terminator X, Each

Part Number: HLY-543-121

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Gauge Wiring Harnesses, Holley EFI, Replacement, I/O Adapter, Plug-and-Play, for 7 in. Digital Dash, Each

Part Number: HLY-558-432

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Data Acquisition Components, Holley EFI, EGT Probe, 90 Degree, Open End Tip, 27.5 in Harness, 1/4 in. Probe, Stainless Wire Cover, Each

Part Number: HLY-554-177

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Crank Triggers, Holley EFI, 12-1X LS, Hall Effect, 6.56 in. Diameter, Aluminum, Silver, Adjustable Bracket, 3-wire Pickup, Gen III, IV, SBC, Kit

Part Number: HLY-556-176

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Adapter Harnesses, Holley EFI, MAP Sensor Adapter, MPFI Weatherpack 2-pin to 3-pin Delphi GT Connector, Plug-and-Play, LS Engine Harness, Each

Part Number: HLY-558-466

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Wire Connectors, Holley EFI, ECU Connectors, J1A/J1B Sealed Connectors, 20-22 and 16-18 gauge Wire Pins, Cavity Plugs, Kit

Part Number: HLY-558-448

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Ignition Coil Wiring Harnesses, Holley EFI, Gen III Hemi, Coil Harness, Late Style, OE Connectors, for HP, Dominator EFI Systems, Dodge, 5.7L, Each

Part Number: HLY-558-311

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Electrical Wires, Holley EFI, Shielded Cable, Black Jacket, 7-conductor, Five 18 gauge Wires, Two 20 gauge Wires, Wideband, 100 ft. Spool, Each

Part Number: HLY-572-101

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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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: Monday 3/30/2026 if shipped by air

Convoluted Tubing, Wire Looms and Wire Sleeves, Holley EFI, Split Wire Loom, Black Nylon, Slip-on Insulation, 0.750 in. I.D., 10 ft. Long, Each

Part Number: HLY-573-108

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Wiring Harnesses, RetroBright Adapter, H4, Non-Standard Plug, Pin-Out Swap, Plug-and Play, Ceramic, Premium Version,Pair

Part Number: HLY-H820

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Data Acquisition Components, Holley EFI, EGT Probe, 90 Degree, Open End Tip, 18.5 in Harness, 1/4 in. Probe, Stainless Wire Cover, Each

Part Number: HLY-554-175

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Ignition Coils, Holley EFI, Coyote, Smart Coils, Black, 50,000V, Rectangular, Connector, Pins Included, for HP, Dominator ECU, 8-piece, Ford, Set

Part Number: HLY-556-161

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Engine Management Systems, Dominator EFI, 24-EV1 Injectors, 12-Coils, Drive-by-wire, Trans Control, 4x Cam Sensor, Chevy, 4.8-7.0L, 58x Crank, Kit

Part Number: HLY-550-660

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Engine Management Systems, Terminator X MAX, 8-EV6 Injectors, 8-Coils, Plug-and-Play, Drive-by-Wire, Tuner/Trans Control, 4R70W, Ford, 4.6L, 5.4L, Kit

Part Number: HLY-550-1317

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Data Acquisition Components, Holley EFI, EGT Probe, 90 Degree, Open End Tip, 22.75 in Harness, 1/4 in. Probe, Stainless Wire Cover, Each

Part Number: HLY-554-176

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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