Holley Electrical Wiring

Weatherproof Connectors, Holley EFI, J1B Input/Output Connector, OEM Style, 26-pin, Female, Black Plastic, includes Pins, Seals, TPA, Kit

Part Number: HLY-570-344

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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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Estimated Ship Date: Today

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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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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: Today

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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Wiring Harnesses, RetroBright, Adapter, H4, Non-Standard Plug, Pin-Out Swap, Plastic Version, Entry Level, Pair

Part Number: HLY-H821

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Wire Connectors, RetroBright, Replacement, Unterminated Connector, Male, 3-pin, Plastic, Black, for H4 or 9003 System, Pins Not Included, Each

Part Number: HLY-RBEC120

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Estimated Ship Date: Dec 26, 2025 if ordered today

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• Special Order

Wire Connectors, RetroBright, Replacement, Unterminated Connector, Female, 3-pin, Plastic, Black, for H4 or 9003 System, Pins Not Included, Each

Part Number: HLY-RBEC121

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Estimated Ship Date: Dec 26, 2025 if ordered today

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Computer Software, Holley EFI, Terminator X, Active Speed Management, Web Download, Drag Race Traction Control, for Terminator X, V3 or Later, Each

Part Number: HLY-555-101

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Estimated Ship Date: Dec 26, 2025 if ordered today

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• Special Order