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Holley Replacement Fuel Injector Wiring Harnesses 558-501 Injection System Harnesses, EFI, GM LS 58X Crank Sensor, Includes Power, EV6 Injector, Main Harnesses, for HP, Dominator ECUs, Kit

Holley Replacement Fuel Injector Wiring Harnesses 558-501 Injection System Harnesses, EFI, GM LS 58X Crank Sensor, Includes Power, EV6 Injector, Main Harnesses, for HP, Dominator ECUs, Kit

A$2,057.79
LOW STOCK! Est Ship 4-7 days. HURRY! LOW STOCK. This item is in limited stock at one of our distribution centres. The ETA is the approximate time required to prepare your order for dispatch.
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Description

These Holley replacement fuel injector wiring harnesses are replacements for the 8-cylinder injector harnesses. They connect the main harness to the injectors, routing the wires over the rail and making replacement a snap!

Part Type

Wire Harness - LS2/LS3/ LS7 Fuel Injectors

Data: v4.2 - Upd: 2026-10-13 18:48:02

Specifications

Product Attributes - Brand
Holley
Product Attributes - Manufacturer's Part Number
558-501
Product Attributes - Part Type
Fuel Injection System Wiring Harnesses
Product Attributes - Product Line
Holley Replacement Fuel Injector Wiring Harnesses
Product Attributes - UPC
090127721322
Product Attributes - Fuel Injection Style
Multi-port
Product Attributes - Quantity
Sold as a kit.
Product Attributes - Notes
Includes main power harness, LS2 main harness and LSX injector harness; for use with LS2/LS3/LS7 with 58 tooth crank sensor. Works with HP or Dominator ECUs. Requires ECU and o2 sensor (sold separately).

Reference Information

Brand Name/s Holley
StreetFX SKU hly558-501
SFX Item ID 4782558
Supplier Item Code 4782558
Manufacturer SKU 558-501
Manufacturer UPC 90127721322
Alternative References HOL558-501, 58X, EV6

Compatibility

Application Data
  • Stock EFI SystemNo
    EFI System ManufacturerHolley
    UniversalNo
    MakeCHEVROLET
    Engine TypeV8
    Engine Size6.0L/364
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
  • Stock EFI SystemNo
    EFI System ManufacturerHolley
    UniversalYes
    MakeCHEVROLET
    Engine TypeV8
    Engine Size6.2L/376
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
  • Stock EFI SystemNo
    EFI System ManufacturerHolley
    UniversalYes
    MakeCHEVROLET
    Engine TypeV8
    Engine Size6.2L/376
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
  • Stock EFI SystemNo
    EFI System ManufacturerHolley
    UniversalYes
    MakeCHEVROLET
    Engine TypeV8
    Engine Size7.0L/427
    Engine FamilyChevy small block Gen III/IV (LS-based engines)

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