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Holley 558-128 Engine Main Harness, 5.0L Fuel Injected S/B Ford

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#425558128

Holley 558-128 Engine Main Harness, 5.0L Fuel Injected S/B Ford

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

$584.95

Factory Shipped

$633.95

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Product Summary

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.

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Key Specs

MFG. Part #	558-128
Brand	Holley

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Holley 558-128 Details

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.

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.

Guides & Documents

Engine Wiring Harnesses Installation Instructions (425558128)

CARB Warning

For race/ off road use only

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CA Prop 65

CARB warning

Holley 558-128 Specifications

KEY SPECS
MFG. Part #	558-128
Brand	Holley

GENERAL
Sold in Quantity	Each
GTIN Code	090127074428

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Fitment

1985-1996 Ford Bronco

5.0L Ford Small Block Windsor

1987-1991 Ford Country Squire

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1985-1996 Ford E-150 Econoline

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1985-1996 Ford E-150 Econoline Club Wagon

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1985-1991 Ford E-250 Econoline

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1996-2001 Ford Explorer

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1985-1996 Ford F-150

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1985-1997 Ford F-250

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1995-1997 Ford F-350

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1985-1986 Ford LTD

5.0L Ford Small Block Windsor

1987-1991 Ford LTD Crown Victoria

5.0L Ford Small Block Windsor

1983-1995 Ford Mustang

5.0L Ford Small Block Windsor

1985-1988 Ford Thunderbird

5.0L Ford Small Block Windsor

1991-1993 Ford Thunderbird

5.0L Ford Small Block Windsor

1985-1987 Lincoln Continental

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1985-1992 Lincoln Mark VII

5.0L Ford Small Block Windsor

1985-1990 Lincoln Town Car

5.0L Ford Small Block Windsor

1985-1986 Mercury Capri

5.0L Ford Small Block Windsor

1987-1991 Mercury Colony Park

5.0L Ford Small Block Windsor

1985-1988 Mercury Cougar

5.0L Ford Small Block Windsor

1991-1993 Mercury Cougar

5.0L Ford Small Block Windsor

1985-1991 Mercury Grand Marquis

5.0L Ford Small Block Windsor

1985 Mercury Marquis

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1997-2001 Mercury Mountaineer

5.0L Ford Small Block Windsor