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Holley Performance 558-104 Universal Multi-Point Main Harness

4785634 - 558-104

For Avenger EFI/HP EFI/Dominator EFI Systems

558-104 Universal Multi-Point Main Harness Holley Performance

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Holley Performance - Universal Multi-Point Main Harness - Part#: 558-104 Features:

  • Universal Multi-Point Main Harness
  • w/205 lb. Connectors

View the Full List of Automotive Applications »

Below is an abbreviated list of applications for the Universal Multi-Point Main Harness.


Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors have powered every NASCAR Sprint Cup team and nearly every NHRA Pro–Stock champion for four decades. Now, Holley EFI is dominating the performance world as well as our products for GM's LS engine. Holley's products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies - Hooker Headers, Flowtech Exhaust, NOS Nitrous, Weiand, Earl's Performance Plumbing, or Diablosport - Holley products can give you the edge you need over the competition.

Shipping Information

  • Item Requires Shipping
  • 4.0 lbs.
  • W4.0000” x H10.5000” x L11.0000”

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