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Holley EFI TRANSMISSION CONTROL HARNESS (GM 4L60 & 4L80)

$299.95

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Expanding our transmission control options for our EFI systems, this harness provides plug and play for Pre-2009 GM 4L60 and 4L80 transmissions using a Dominator. This also contains a J4 connector to operate GM electronic transmissions.

FEATURES
  • Plug and play fully terminated harness
  • Made for Dominator
  • Connectors and unterminated wires for easy installation
  • J4 connector for electronic transmission
SPECS
Brand Holley EFI
Category Air and Fuel Delivery
Emission Code 4
Harness Application GM
Harness Type Transmission
Make GM
Part Type Fuel Injection Harness
Product Type Transmission Harness
Sub Category Wire, Cable and Related Components
UPC 090127667491
Part Number 558-405

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.

TECH RESOURCES
558-405 Wiring Diagram

Instructions - 558-4051957.jpg

This product is not compatible with 4WD installations.

WARRANTY INFORMATION
Holley Brand Warranties


Add to Cart:

  • Model: 558-405
  • FROM: Holley EFI

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we added this on Wednesday 17 September, 2025.

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