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Holley EFI

Ford 2V & 4V Modular Main Harness

Ford 2V & 4V Modular Main Harness, For HP EFI & Dominator EFI

Part # 558-108 Be the first to write a review

Ford 2V & 4V Modular Main Harness

Estimated Ship Date: 05/17/2024
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4

Emissions

This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street.

    See Emissions Details
Main harness for 99-04 2 & 4 Valve Ford Modular (4.6 & 5.4L) Engines.

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Find standalone EFI for LS, Coyote, Hemi and more at Holley.com. From engine swapping to managing up to 4000 horsepower, we have a solution for every project!

Brand Holley EFI
Emission Code4
Harness ApplicationFord
Harness TypeMain
Product TypeFord Modular Main Engine Harness
UPC090127712863
Part Number558-108
4

This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street.

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

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Wiring Shop Quick Reference Guide
Wiring Shop Quick Reference Guide
Instructions for Part# 558-108
Wiring Diagram
Addendum for Part# 558-108

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