• Holley 550-604N HP EFI Engine Control Module and Wiring Harness Kit
  • Holley 550-604N HP EFI Engine Control Module and Wiring Harness Kit

Holley 550-604N HP EFI Engine Control Module and Wiring Harness Kit

$2,999.95 USD
$2,999.95 USD
$2,999.95 USD
Shipping calculated at checkout.

Vendor : HOLLEY

Product Type : Ignitions and Electrical

Sku : HLY550-604N

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HP ECU & Harness MPFI - NTK

The Holley 550-604N HP EFI Engine Control Module and Wiring Harness Kit is designed for V8 multi-port fuel injection applications. This kit combines an engine control module with an HP EFI wiring harness to support an organized electronic fuel injection installation.

An NTK oxygen sensor is included as part of the kit, providing an oxygen-sensing component for the EFI system. The integrated components are specified for use with V8 multi-port fuel injection configurations.

With its combination of control electronics, wiring, and oxygen-sensor hardware, the Holley 550-604N provides the primary components identified for this HP EFI MPFI kit. Refer to the application and installation requirements for the specific vehicle and engine setup before purchase.

Features:

  • Engine Control Module: Includes an HP EFI engine control module.
  • Wiring Harness: Includes an HP EFI wiring harness.
  • Fuel Injection Type: Designed for V8 multi-port fuel injection applications.
  • Oxygen Sensor: Includes an NTK oxygen sensor.
  • Kit Format: Supplied as a combined engine control module, wiring harness, and oxygen-sensor kit.