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Holley J1A/B Dominator Auxiliary Wiring Harnesses 558-400 Fuel Injection System Harnesses, EFI, Replacement, Harness, Inputs/Outputs, for Terminator, EFI Systems, Each

Holley J1A/B Dominator Auxiliary Wiring Harnesses 558-400 Fuel Injection System Harnesses, EFI, Replacement, Harness, Inputs/Outputs, for Terminator, EFI Systems, Each

A$365.44
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 J1A/B Dominator auxiliary wiring harnesses are designed to connect into the main harness input/ouput connector. They feature loose lead wires on one end and an 8-pin Metri-Pack connector on the other.

Part Type

J1A/B Input/Output Connector

Data: v4.2 - Upd: 2026-10-17 02:05:29

Specifications

Product Attributes - Brand
Holley
Product Attributes - Manufacturer's Part Number
558-400
Product Attributes - Part Type
Fuel Injection System Wiring Harnesses
Product Attributes - Product Line
Holley J1A/B Dominator Auxiliary Wiring Harnesses
Product Attributes - UPC
090127666418
Product Attributes - Fuel Injection Style
Multi-port
Product Attributes - Metering Style
Speed density (Map-N) or speed throttle (Alpha-N)
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
Replacement input and output harness. Compatible with Holley Terminator X, HP or Dominator EFI systems.

Reference Information

Brand Name/s Holley
StreetFX SKU hly558-400
SFX Item ID 4783509
Supplier Item Code 4783509
Manufacturer SKU 558-400
Manufacturer UPC N/A
Alternative References HOL558-400, J1A/B

Compatibility

Application Data
  • Stock EFI SystemNo
    EFI System ManufacturerHolley
    UniversalYes
    Application NotesReplacement input and output harness. Compatible with Holley Terminator X, HP or Dominator EFI systems.

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