Electrical Wiring

Relays, High-Current, Solid State, 4 Channel, 35 amps, Black Each

Part Number: MSD-75643-HC

4.43 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Relays, High-Current, Solid State, 4 Channel, 35 amps, Red, Each

Part Number: MSD-7564-HC

5.0 out of 5 stars ( 6 )

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Relay Module, Four Channel, 40 Amp, 7-20V, Each

Part Number: MSD-7566-4

3.67 out of 5 stars ( 6 )

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Relays, Fuel Pump, 30 Amp, 12V, Single Pole, Blade Type, Wire Harness Included, Each

Part Number: HLY-12-753

4.38 out of 5 stars ( 8 )

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Relay Block, Solid State, Stand Alone, Black, Each

Part Number: MSD-75643

3.36 out of 5 stars ( 11 )

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Transmission Harness, Holley EFI, Transmission Control Harness, GM 4L60E, Plug-and-Play, Build in relay, for Dominator EFI ECU, Each

Part Number: HLY-558-455

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Wire Connector Replacement Parts, Holley EFI, Replacement, J2A, J2B, J3, J4, Male/Female Connectors, Pins, Weatherproof Seals, for Dominator EFI, Kit

Part Number: HLY-558-408

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Wiring Harness, Atomic TCU, GM, 4L60E/4L65E/4L80E/4L85E/4L70E/4L75E, Each

Part Number: MSD-2770

5.0 out of 5 stars ( 3 )

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Weatherproof Connectors, Holley EFI, GM LSx Engine, Main Harness Connectors, Connectors, Pins, Seals, Cavity Plugs included, Kit

Part Number: HLY-570-103

5.0 out of 5 stars ( 1 )

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Electrical Junction Blocks, 4-Connector CAN-Bus Hubs, 4-wire Connector, Plastic, Black, Each

Part Number: MSD-77403

5.0 out of 5 stars ( 1 )

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Circuit Guard, for Electronic Ignitions, Each

Part Number: MAA-29371

4.92 out of 5 stars ( 12 )

Estimated Ship Date: Today

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Wire Connectors, Deutsch Connector Kit, 360 Piece, Includes 2, 3, 4, 6, 8, and 12 Pin Housings, Pins, Seals, Wedges, Clear Plastic Case, Each

Part Number: MSD-8188

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Turn Signal Switch, Wiring, Ford, Each

Part Number: SDK-C8SZ-13341-A

4.22 out of 5 stars ( 9 )

Estimated Ship Date: Today

Relay Block, Solid State, Stand Alone, 4 Channel, 20 Amp Fused, Red, Each

Part Number: MSD-7564

4.83 out of 5 stars ( 12 )

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Electrical Wires, Holley EFI, Shielded Cable, Black Jacket, 3-conductor, 20 gauge Wire, Internally Shielded, 100 ft. Spool, Each

Part Number: HLY-572-104

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Turn Signal Switch, Wiring, Ford, Each

Part Number: SDK-C8SZ-13341-B

4.0 out of 5 stars ( 1 )

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Relays, Dual Fuel Pump, 40 Amp, 12V, Single Pole, Blade Type, Wire Harness Included, Chrysler, Dodge, Ford, Kit

Part Number: HLY-12-759

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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

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Transmission Harnesses, Holley EFI, Control Harness, Chrysler Transmission, 46RE, Plug-and-Play, for Terminator X Max System Only, Each

Part Number: HLY-558-473

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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

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Conversion Harness: Super Duty OEM LED Headlights (17-19) (Gen 2)

Part Number: MRI-H129

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Estimated Ship Date: Sep 16, 2025 if ordered today

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Transmission Harnesses, Holley EFI, Control Harness, F-Body, T-56 Tranny, Plug-and-Play, VSS, Reverse Lockout, for Terminator X, Max X ECUs, Each

Part Number: HLY-558-481

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Wiring Harness, Holley EFI, Gen III Hemi, VVT, Sub-Harness Only, Plug-and -Play, for Terminator X, Terminator X Max EFI, Dodge, 5.7L, 6.4L, Each

Part Number: HLY-558-131

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Wiring Harnesses, Holley EFI, Gen III Hemi, VVT, SRV, Sub-Harness Only, Plug-and -Play, for Terminator X, Terminator X Max EFI, Dodge, 5.7-6.4L, Each

Part Number: HLY-558-132

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Estimated Ship Date: Sep 23, 2025 if ordered today

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Switch, Push Button, Momentary, Launch, Nitrous, Trans-Brake, Plastic, Red, 10 Amps, with Spiral Cord, Each

Part Number: HUU-2483880

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Today

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