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Holley EFI

Holley EFI 558-128 Engine Main Harness

Compatible with 1986-2000 Ford® Fuel Injected 5.0L/5.8L Small Block Engines. This product is not created or sold by Ford®.

Part # 558-128 Be the first to write a review

Holley EFI 558-128 Engine Main Harness

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$466.16
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4

Emissions

This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street.

    See Emissions Details
This harness is for fuel injected small block 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.
Brand Holley EFI
Emission Code4
Product TypeEngine Main Harnesses
UPC090127074428
Manufacturer Part Number558-128
Part Number558-128
4

This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street.

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

Instructions for 558-128
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