Holley Ignitions & Electrical

Weatherproof Connectors, Holley EFI, J4 Input/Output Connector, OEM Style, Black Plastic, includes Pins, Seals, TPA, Kit

Part Number: HLY-570-348

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Weatherproof Connectors, Holley EFI, J2B Input/Output Connector, OEM Style, Black Plastic, includes Pins, Seals, TPA, Kit

Part Number: HLY-570-346

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Wiring Harness Adapters, Sniper EFI 1 Harness to Sniper EFI 2 System, Pre-Terminated, Each

Part Number: SNE-558-489

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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

Part Number: HLY-558-433

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

• Free Shipping

Spark Plug Wire Sets, Holley EFI, Assembled, for Coil Packs, Black Wire, 8.00mm Core, Black Silicone, Plug Boot, 135 Degree, Chevy, Camaro, 6.2L, Set

Part Number: HLY-561-100

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

• Free Shipping

Distributor Rotor, Holley Sniper EFI HyperSpark Rotor, Brass Contact Terminal, Fits 565-300 Series Hyperspark Distributors, Each

Part Number: SNE-566-106

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Convoluted Tubing, Wire Looms and Wire Sleeves, Holley EFI, Split Wire Loom, Black Nylon, Slip-on Insulation, 0.250 in. I.D., 10 ft. Long, Each

Part Number: HLY-573-102

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Tomorrow

Convoluted Tubing, Wire Looms and Wire Sleeves, Holley EFI, Split Wire Loom, Black Nylon, Slip-on Insulation, 0.500 in. I.D., 10 ft. Long, Each

Part Number: HLY-573-106

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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: Tomorrow

• Free Shipping

Distributors, Holley EFI, Dual-Sync, Hall Effect, Computer-controlled Advance, Male/HEI, Black Cap, Steel Gear, Black Housing, Ford, 5.4-7.0L, Each

Part Number: HLY-565-205BK

Not Yet Reviewed

Estimated Ship Date: Tomorrow

• Free Shipping

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: Tomorrow

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Engine Management Systems, Terminator X MAX, 8-EV6 Injectors, 8-Coils, Analog Input, USB Cable, Chevy, LS, 5,7L, 1x Cam, 24x Crank, Kit

Part Number: HLY-550-932T

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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: Tomorrow

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: Tomorrow

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: Tomorrow

• Free Shipping

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: Tomorrow

• Free Shipping

Wire Harnesses, Sniper 2 EFI, Adapter for Pro-Billet Distributer or 2-Wire Magnetic pickup Trigger, Each

Part Number: HLY-558-330

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

Fuel Injection System Wiring Harnesses, Holley EFI, Ford GT500, 3V Drive-by-Wire, Throttle Body Harness, Plug-and-Play, Ford, Mustang, 4.6L, 5.4L, Kit

Part Number: HLY-558-461

Not Yet Reviewed

Estimated Ship Date: Tomorrow

• Free Shipping

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: Tomorrow

Weatherproof Connectors, Holley EFI, J3 Input/Output Connector, OEM Style, Black Plastic, includes Pins, Seals, TPA, Kit

Part Number: HLY-570-347

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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: Tomorrow

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Data Acquisition Components, EGT Cap, Stainless Steel, 1/4 in., 8-piece, Set

Part Number: HLY-543-164

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Alternators, High-amp, DR44G Style, Cast Aluminum, Natural Finish, Serpentine Pulley, 105 amps, 12V, Internal Regulator, Chevy, 4.8-7.0L, Each

Part Number: HLY-197-300

Not Yet Reviewed

Estimated Ship Date: Tomorrow

• Free Shipping

Transmission Harnesses, Holley EFI, Control Harness, Tremec TKX-TKO Tranny, Plug-and-Play, VSS, Reverse Lockout, for Terminator Max X ECUs, Each

Part Number: HLY-558-482

Not Yet Reviewed

Estimated Ship Date: Tomorrow

• Free Shipping

Wire Connectors, Holley EFI, 4-pin CAN Connector, Main Harness Side, Mizu-P25, 4-pin, Male, Black Plastic, Universal, Each

Part Number: HLY-570-229

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow