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Holley Dominator EFI Auxiliary Harnesses 558-404 Fuel Injection Systems Wiring Harnesses, EFI, J4 Harness, MPFI, Speed Density/Throttle, 26 Input/Outputs, Connector Included, Kit

Holley Dominator EFI Auxiliary Harnesses 558-404 Fuel Injection Systems Wiring Harnesses, EFI, J4 Harness, MPFI, Speed Density/Throttle, 26 Input/Outputs, Connector Included, Kit

A$547.21
IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

Holley has put together a choice of several Dominator EFI auxiliary harnesses. These kits include the loose wires, connectors, inputs, and outputs needed to configure and customize your Dominator EFI system to meet your performance needs.

Part Type

J4 Connector & Harness

Data: v4.2 - Upd: 2026-10-14 02:10:28

Specifications

Product Attributes - Brand
Holley
Product Attributes - Manufacturer's Part Number
558-404
Product Attributes - Part Type
Fuel Injection System Wiring Harnesses
Product Attributes - Product Line
Holley Dominator EFI Auxiliary Harnesses
Product Attributes - UPC
090127666456
Product Attributes - Fuel Injection Style
Multi-port
Product Attributes - Metering Style
Speed density (Map-N) or speed throttle (Alpha-N)
Product Attributes - Quantity
Sold as a kit.
Product Attributes - Notes
Includes J4 ECU connector and 26 user-programmable inputs and outputs.

Reference Information

Brand Name/s Holley
StreetFX SKU hly558-404
SFX Item ID 4782184
Supplier Item Code 4782184
Manufacturer SKU 558-404
Manufacturer UPC 90127666456
Alternative References HOL558-404

Compatibility

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