Holley Fuel Injection Harness 558-503; for Chevy

$728.95

Part #: 558-503

Brand: Holley

UPC: 090127721346

Estimated Ship Date: 5/24/2025 (From manufacturer)

Specifications Tech Resources Recommended

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Details

Simple Installation
For HP EFI/Dominator EFI Systems

Product Description

An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes complete with the main harness, power harness and injector harness to support your primary system!

Specifications

Make:
Chevy: Injector Connector Style:
Jetronic, Minitimer (Bosch): Notes:
NOTICE: You will need to purchase a ECU and O2 Sensor to make this a complete kit.: Quantity:
Sold As Each

Tech Resources

199r10837.pdf

efi_selection_chart62914.pdf

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