Canada Post Strike Delivery Information. Get your orders in time for the holidays. DETAILS ]

855.444.6872 Contact Us Mon-Sat 10a-6p
DRIVEN BY CARE

Holley EFI 5.0L Ford Engine Main Harness 558-128

Holley EFI 5.0L Ford Engine Main Harness 558-128
$864.99 ea
NEWARRIVING SOONEstimated Ship Date 01/07/2025 (If Ordered Today)59 Available from HOLLEY PERFORMANCE PRODUCTS as of 12/21/2024
Model: 4952986
STANDARD
DELIVERY
STORE PICKUP
[More Info]
This harness is for fuel injected small block ford engines, such as 5.0L, or 5.8L Windsor powerplants. Plug and play ignition capability with Dual Sync and HyperSpark Distributors, ignition adapter 558-305 is required for applications with a TFI distributor. The 5.0L Ford main harness is pre-terminated with Ford PWM IAC connector, for the OEM PWM - idle air control motor commonly found on late 80's and early 90's engines. Compatible with Holley EFI Dominator, HP, and Terminator X and X Max ECU's.
Features:
  • Designed for use with fuel injected small block ford engines, such as 5.0L, or 5.8L Windsor powerplants.
  • Plug and play ignition capability with Dual Sync and HyperSpark Distributors, for ignition adapter 558-305 is required for applications with a TFI distributor
  • Compatible with Holley EFI Dominator, HP, and Terminator X and X Max ECU’s
  • Comes pre-terminated with Ford PWM IAC connector, for OEM PWM – idle air control motors
  • For use with OEM Ford fuel injectors, use injector harness 558-209.

About Holley Performance Products

Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every Monster Energy NASCAR Cup team and nearly every NHRA Pro-Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds and engine dress-up products for street performance, race and marine applications. As a single solution or partnered with products from other Holley companies we can give you the edge you need over the competition!

Downloads:

Download Name File Size
efi_selection_chart62914.pdf836.71KB
199r11957.pdf1.57MB

Videos:

Specifications:

Emission Code 4
Harness Application Ford
Harness Type Main
Part Type Engine Wiring Harness
Product Type 5.0L Ford Main Harness
Proposition 65 www.P65Warnings.ca.gov

Reviews:

Write a Review
* Your Name:
* Email (This will not be displayed)
* Rating:
Comments:

Ask a question about

Holley EFI 5.0L Ford Engine Main Harness 558-128: