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Holley Drive-By-Wire Dual Throttle Body Harnesses 558-450 Fuel Injection System Components, EFI, Hemi, Body, Harness, for Dominator EFI, Chrysler, Dodge, Ram, 5.7-6.4L, Each

Holley Drive-By-Wire Dual Throttle Body Harnesses 558-450 Fuel Injection System Components, EFI, Hemi, Body, Harness, for Dominator EFI, Chrysler, Dodge, Ram, 5.7-6.4L, Each

A$916.80
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 Drive-By-Wire (DBW) dual throttle body harnesses are for use with the Dominator EFI ECU, which has built-in capability to control OEM-type DBW throttle pedals and throttle bodies for aftermarket installation. These plug-and-play harnesses are available for the most popular engine swaps. Order the throttle body harness designed to fit your application.

Wiring harness features:

* Harnesses are available to connect to a late model HEMI engine for the most advanced fuel and timing controls available
* Each harness is designed in fit and function specifically for Gen III HEMI engine platforms
* All wiring is TXL-grade copper wiring with minimal weight; high-temp sleeve in a smaller diameter
* Factory-style terminations provide a strong, secure connection
* Connectors are OEM-grade for a correct, positive fit
* Each harness is routed through a split-loom braid for protection and great looks

Part Type

Fuel Injection System Components

Data: v4.2 - Upd: 2026-10-13 18:47:41

Specifications

Product Attributes - Brand
Holley
Product Attributes - Manufacturer's Part Number
558-450
Product Attributes - Part Type
Fuel Injection System Components
Product Attributes - Product Line
Holley Drive-By-Wire Dual Throttle Body Harnesses
Product Attributes - UPC
090127745687
Product Attributes - Fuel Injection System Component Type
Wiring harness
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
Designed for use with Holley Dominator ECU. Additionally, this harness requires pedal assembly, Holley part number 04861714.

Reference Information

Brand Name/s Holley
StreetFX SKU hly558-450
SFX Item ID 4783083
Supplier Item Code 4783083
Manufacturer SKU 558-450
Manufacturer UPC 90127745687
Alternative References HOL558-450, 5.7-6.4L

Compatibility

Application Data
  • UniversalNo
    MakeCHRYSLER
    Beginning Year2013
    Ending Year2014
    Engine TypeV8
    Engine Size6.4L/392
    Engine FamilyMopar Hemi Gen III
    Fuel Injection ConfigurationHolley Dominator EFI
    Application NotesDesigned for use with Holley Dominator ECU.
  • UniversalNo
    MakeCHRYSLER
    Beginning Year2013
    Ending Year2016
    Engine TypeV8
    Engine Size5.7L/345
    Engine FamilyMopar Hemi Gen III
    Fuel Injection ConfigurationHolley Dominator EFI
    Application NotesDesigned for use with Holley Dominator ECU.
  • UniversalNo
    MakeDODGE
    Beginning Year2013
    Ending Year2016
    Engine TypeV8
    Engine Size6.4L/392
    Engine FamilyMopar Hemi Gen III
    Fuel Injection ConfigurationHolley Dominator EFI
    Application NotesDesigned for use with Holley Dominator ECU.
  • UniversalNo
    MakeDODGE
    Beginning Year2013
    Ending Year2017
    Engine TypeV8
    Engine Size5.7L/345
    Engine FamilyMopar Hemi Gen III
    Fuel Injection ConfigurationHolley Dominator EFI
    Application NotesDesigned for use with Holley Dominator ECU.
  • UniversalNo
    MakeDODGE
    Beginning Year2015
    Ending Year2016
    Engine TypeV8
    Engine Size6.2L/376
    Engine FamilyMopar Hemi Gen III
    Fuel Injection ConfigurationHolley Dominator EFI
    Application NotesDesigned for use with Holley Dominator ECU.
  • UniversalNo
    MakeRAM
    Beginning Year2013
    Ending Year2017
    Engine TypeV8
    Engine Size5.7L/345
    Engine FamilyMopar Hemi Gen III
    Fuel Injection ConfigurationHolley Dominator EFI
    Application NotesDesigned for use with Holley Dominator ECU.
  • UniversalNo
    MakeRAM
    Beginning Year2014
    Ending Year2017
    Engine TypeV8
    Engine Size6.4L/392
    Engine FamilyMopar Hemi Gen III
    Fuel Injection ConfigurationHolley Dominator EFI
    Application NotesDesigned for use with Holley Dominator ECU.

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