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Holley EFI Systems Wiring Harnesses 558-505 Fuel Injection System Harnesses, EFI, 2V Modular EFI, with Main, Power, Injector Harnesses, for HP, Dominator ECU, Ford, 4.6-5.4L, Kit

Holley EFI Systems Wiring Harnesses 558-505 Fuel Injection System Harnesses, EFI, 2V Modular EFI, with Main, Power, Injector Harnesses, for HP, Dominator ECU, Ford, 4.6-5.4L, Kit

A$3,534.40
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
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Description

Holley offers a variety of direct replacement EFI wiring harnesses, including multi-port, sequential, and throttle body injection styles. These units are made with premium components to ensure better reliability and performance for your ride--and they're compatible with many engine swaps. Holley EFI systems wiring harnesses are sold individually or as a kit; choose the model needed for your fuel injection application.

Part Type

Fuel Injection System Wiring Harnesses

Data: v4.2 - Upd: 2026-10-13 18:46:04

Specifications

Product Attributes - Brand
Holley
Product Attributes - Manufacturer's Part Number
558-505
Product Attributes - Part Type
Fuel Injection System Wiring Harnesses
Product Attributes - Product Line
Holley EFI Systems Wiring Harnesses
Product Attributes - UPC
090127721377
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
Interfaces a Holley HP or Dominator EFI ECU (sold separately) to a 1999-2004 2-valve Ford Modular engine. Includes main power harness, injector harness, and the 2-valve coil harness. Requires an O2 sensor and ECU to be a complete kit. Utilizes most stock sensors.

Reference Information

Brand Name/s Holley
StreetFX SKU hly558-505
SFX Item ID 4784633
Supplier Item Code 4784633
Manufacturer SKU 558-505
Manufacturer UPC 90127721377
Alternative References HOL558-505, 4.6-5.4L

Compatibility

Application Data
  • Stock EFI SystemNo
    EFI System ManufacturerHolley
    UniversalNo
    MakeFORD
    Beginning Year1999
    Ending Year2004
    Engine TypeV8
    Engine Size4.6L/281
    Engine FamilyFord modular V8
  • Stock EFI SystemNo
    EFI System ManufacturerHolley
    UniversalNo
    MakeFORD
    Beginning Year1999
    Ending Year2004
    Engine TypeV8
    Engine Size5.4L/330
    Engine FamilyFord modular V8
  • Stock EFI SystemNo
    EFI System ManufacturerHolley
    UniversalNo
    MakeFORD
    Beginning Year1999
    Ending Year2004
    Engine TypeV8
    Engine Size4.6L/281
    Engine FamilyFord modular V8
  • Stock EFI SystemNo
    EFI System ManufacturerHolley
    UniversalNo
    MakeFORD
    Beginning Year1999
    Ending Year2004
    Engine TypeV8
    Engine Size5.4L/330
    Engine FamilyFord modular V8

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