558-504 EFI Harness Kit Universal V8

Name: 558-504 EFI Harness Kit Universal V8
Brand: HOLLEY
SKU: 510-558-504
Price: 899.95 USD
Availability: InStock

^$899⁹⁵

Ships on 09/08/2026

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EFI Harness

Universal V8
MPFI
Harness Kit Includes; Main Power Harness, Universal MPFI Main Harness, v-8 Injector Harness
Simple installation
Works with HP or Dominator ECU's
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
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Part TypeFuel Injection Wiring Harness

BrandHOLLEY

Package Height5.0

Package Width14.0

Package Length15.0

Weight8.0 PG

Part CategoryPerformance Parts

Part FitmentSemi Universal

Vendor Part Number558-504

Package Qty1

Package TypeEA

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Some parts are not legal for use in California or other states with similar laws / regulations

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