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Holley EFI LS COIL HARNESSES

$199.95

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Are you tired of scouring the junkyard for stock ls coil sub harnesses? Introducing the new Holley EFI LS Coil Sub Harness. This coil sub harness is intended to be used with factory LS coils and various Holley EFI main harnesses with Coil-on-plug connectors. The Holley EFI LS coil sub harnesses are built with the same high quality connectors and wire loom found on all Holley EFI harnesses, guaranteeing a perfect match in your engine bay.

FEATURES
  • OEM connectors provide a secure connection between your ECU and Ignition Coils
  • Techflex F6 braided wire loom keeps your engine bay looking clean, while providing abrasion resistance
  • Plug & Play fitment
  • Can be used to replace a damaged factory coil harness
  • Fits Truck Coils, and 2005+ LS Car engines.
SPECS
Brand Holley EFI
Category Ignition
Connector Color Gray
Emission Code 2
Grade Type Performance
Harness Application GM, LSX, Universal
Harness Type Ignition
Part Type Ignition Coil Assembly Wiring Harness
Product Type LS Coil Harness
Sub Category Ignition Wire and Related Components
UPC 090127030745
Part Number 558-321

EMISSIONS
This part is legal for sale and use on Emissions Controlled Vehicles when used in accordance with the manufacturers application guide because it is a direct or consolidated replacement part.
The following vehicles are considered Emissions Controlled Vehicles:

1966 and newer U.S. manufactured California Certified vehicles
1968 and newer U.S. manufactured Federally Certified vehicles
1968 and newer Foreign manufactured vehicle

TECH RESOURCES
Instructions - 199r11436.pdf



Add to Cart:

  • Model: 558-321
  • FROM: Holley EFI

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we added this on Thursday 18 September, 2025.

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