Holley Terminator® EFI Wiring Harness | GBP Performance
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Holley

Holley | Terminator® EFI Wiring Harness

558-414
Holley | Terminator EFI Replacement Wiring Harness 558-414 | For Kits 550-405/550-406 | Requires Holley EFI Software Programming
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CAD $809.95 CAD $952.88 Save 15% - FLASH SALE
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Holley – Terminator EFI Wiring Harness

Description

The Holley Terminator EFI Wiring Harness (p/n 558-414) is the replacement main wiring harness designed specifically for the Terminator EFI kits 550-405 and 550-406. It provides full connectivity between the ECU and all EFI system components. Prior to use, the harness must be programmed using Holley EFI software to ensure proper calibration with the engine. This is the direct OEM-equivalent solution for replacing a faulty or damaged harness in these specific configurations.

Specifications

  • Brand: Holley
  • Part Number: 558-414
  • Type: EFI Replacement Main Wiring Harness
  • Compatibility: Holley Terminator EFI kits 550-405 and 550-406 only
  • Programming: Required via Holley EFI software
  • Use: Replace damaged or faulty harness
  • Installation: Not vehicle specific – See compatible kits
  • Condition: New
  • Sold and shipped by GBP Performance

 

Note:

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Compatibility (Application)

MakeModelYearsEngineNotes
Compatible with Holley Terminator EFI kits 550-405 and 550-406 only – Not vehicle specific
Holley
558-414
90127685587

Data sheet

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