Holley Gauge Wiring Harnesses

Gauge Wire Harnesses, Holley EFI, Replacement, Pro Dash Service Harness, Plug-and-Play, for 553-111, 553-112, Each

Part Number: HLY-558-446

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Estimated Ship Date: Today

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

Part Number: HLY-558-432

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Estimated Ship Date: Today

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Gauge Wiring Harnesses, Holley EFI, Terminated Wire Harness, for Digital Dash, Each

Part Number: HLY-558-436

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Gauge Wiring Harnesses, Holley EFI, Replacement, Service Harness, CANBus/USB Connectors, for Digital Dash, Each

Part Number: HLY-558-444

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

• Drop Ship
• Special Order