SKU: 67279213557

5.0L Ford Foxbody EFI Main Harness 558-128

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Description

5.0L Ford Foxbody EFI Main Harness 558-128This 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

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.
  • For TFI distributor applications, use ignition adapter 558-305

Specs:

Brand Holley EFI
Emission Code 4
Grade Type Performance
Harness Application Ford
Harness Type Main
Product Type 5.0L Ford Main Harness
Warning California Proposition 65
Part Number 558-128

Application:

  • NOT INTENDED AS AN OEM REPLACEMENT!
  • Fuel injected small block ford engines, such as 5.0L, or 5.8L Windsor
  • Plug and play ignition capability with Dual Sync and HyperSpark Distributors
  • Compatible with Holley EFI Dominator, HP, and Terminator X and X Max ECU's
  • For use with OEM Ford fuel injectors, use injector harness 558-209
  • Ignition adapter 558-305 is required for applications with a TFI distributor
  • The main harness supports all the primary engine sensors, fuel and ignition for eight cylinder engines, the #1 wideband oxygen sensor, and the first four programmable input and output channels. There are two connectors for this harness designated as “J1A” (pin designations below that start with an A) and “J1B” (pin designations below that start with a B).
Shipping Notes
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Exchange/Return Notes
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SKU: 67279213557

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SR
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★★★★★ 5
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Format: Kindle
I delayed reading the series for reasons I don’t remember. But my TBR list is huge so I thought I’d take a shot of this and I was pleasantly surprised. I didn’t think the blurb about it was anything special. But it was a very good book. It took some interesting twists and turns. I am so glad the second book is already out. Because I would not have waited patiently. Very slow burn but good storyline. 🔥🔥/5
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Reviewed in the United States on January 3, 2025
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Jammie Clark
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★★★★★ 4
A good read
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Reviewed in the United States on November 14, 2023
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Reviewed in the United States on February 15, 2024
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★★★★★ 5
delightful read
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Reviewed in the United States on January 30, 2025
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Kimberly B
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★★★★★ 4
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