ECU Main Wiring Harness for Holley EFI Systems

Name: ECU Main Wiring Harness for Holley EFI Systems
Brand: HOLLEY
SKU: 510-558-490
Price: 174.95 USD
Availability: InStock

^$174⁹⁵

Ships on 09/10/2026

Lowest Price Guarantee

Replacement Parts & Accessories

Engine Control Module Wiring Harness

Holley EFI Systems

Connects the ECU to Sensors and Actuators

Direct Replacement Harness

This main wiring harness connects a Holley EFI ECU to the engine sensors and actuators as a direct replacement harness.

Part TypeEngine Control Module Wiring Harness

BrandHOLLEY

Package Height3.9

Package Width10.7

Package Length11.3

Weight1.6 PG

Part CategoryPerformance Parts

Part FitmentSemi Universal

Vendor Part Number558-490

Package Qty1

Package TypeEA

No Questions

No Reviews

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

⚠️ Warning