Skip to main content
Holley EFI

Holley EFI 558-126 Unterminated 15' Flying Lead Main Harness

Pre-Terminated J1A / J1B 15' Flying Lead Main Harness

Part # 558-126 Be the first to write a review

Holley EFI 558-126 Unterminated 15' Flying Lead Main Harness

In Stock
Free Shipping
$351.86
Add to Wishlist

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
The unterminated main harness comes with both J1A and J1B connectors full terminated with 15' of flying lead wiring.

Features:

  • 15’ long flying lead harness, allows you to completely customize your main harness installation
  • 60 Holley Crimped Wires (57x 20 ga, 3x 18 ga)
  • 30 optional plug seals
Brand Holley EFI
Emission Code4
Product TypeEFI Harnesses
UPC090127054857
Manufacturer Part Number558-126
Part Number558-126
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

Reviews

    Your Review

    *Free Shipping & Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

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