Home / Shop / Holley Replacement Fuel Injector Wiring Harnesses 558-500 Injection System Harnesses, EFI, GM LS 24X Crank Sensor, Includes Power, LS1 Injector, Main Harnesses, for HP, Dominator ECUs, Kit

Holley Replacement Fuel Injector Wiring Harnesses 558-500 Injection System Harnesses, EFI, GM LS 24X Crank Sensor, Includes Power, LS1 Injector, Main Harnesses, for HP, Dominator ECUs, Kit

SKU: HLY558-500

Fuel Injection System Wiring Harnesses

Holley

Holley Replacement Fuel Injector Wiring Harnesses 558-500 Injection System Harnesses, EFI, GM LS 24X Crank Sensor, Includes Power, LS1 Injector, Main Harnesses, for HP, Dominator ECUs, Kit

SKU: HLY558-500

Fuel Injection System Wiring Harnesses

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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

Fuel Injection System Wiring Harnesses

Data: v4.2 - Upd: 2026-10-13 18:47:38

Specifications

Product Attributes - Brand: Holley
Product Attributes - Manufacturer's Part Number: 558-500
Product Attributes - Part Type: Fuel Injection System Wiring Harnesses
Product Attributes - Product Line: Holley Replacement Fuel Injector Wiring Harnesses
Product Attributes - UPC: 090127721315
Product Attributes - Fuel Injection Style: Multi-port
Product Attributes - Metering Style: Mass airflow
Product Attributes - Quantity: Sold as a kit.
Product Attributes - Notes: Kits include main power harness, LS main harness, and V8 injector harnesses. Works with HP or Dominator ECU's, for GM LS1 or LS6 with 24x crank reluctor, and Bosch injectors.

Reference Information

Brand Name/s	Holley
StreetFX SKU	hly558-500
SFX Item ID	4783378
Supplier Item Code	4783378
Manufacturer SKU	558-500
Manufacturer UPC	90127721315
Alternative References	HOL558-500, 24X, LS1

Compatibility

Application Data

Stock EFI System No
EFI System Manufacturer Holley
Universal Yes

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Holley Replacement Fuel Injector Wiring Harnesses 558-500 Injection System Harnesses, EFI, GM LS 24X Crank Sensor, Includes Power, LS1 Injector, Main Harnesses, for HP, Dominator ECUs, Kit

Holley Replacement Fuel Injector Wiring Harnesses 558-500 Injection System Harnesses, EFI, GM LS 24X Crank Sensor, Includes Power, LS1 Injector, Main Harnesses, for HP, Dominator ECUs, Kit

Description

Part Type

Specifications

Reference Information

Compatibility

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