Holley EFI 558-219 Injector Driver Harness

Part # 558-219 Be the first to write a review
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Vehicle emissions regulations are not applicable to this item.

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The Holley EFI Injector Driver Harness comes pre-terminated with a J2B connector, for plug and play connectivity with your Dominator ECU. This harness is designed to be used with the custom staged injection strategy in Holley EFI V5 software. Includes CAN connectors, allowing you to quickly diagnose any issues over the CAN network.


  • Designed to work with the Holley EFI 554-143 injector driver module, and a 554-114 Dominator ECU.
  • Techflex F6 loomed harness provides protection from engine bay dirt and grime, while matching your Holley EFI harness for a clean installation.
  • Plug and play pre-termination allows you to quickly update your installation to 16+ injectors.
  • Allows you to easily add a second set of injectors by utilizing Holley EFI V5 and up with Custom Staged Injection strategies.
Brand Holley EFI
Emission Code6
Product TypeInjector Harnesses
Manufacturer Part Number558-219
Part Number558-219

Vehicle emissions regulations are not applicable to this item.

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    Some parts are not legal for use in California or other states with similar regulations.