Hero image 0 of Holley EFI 558-118 Ignition Harness, 0 of 7

Holley EFI 558-118 Ignition Harness

Name: Holley EFI 558-118 Ignition Harness
Brand: HOLLEY EFI
SKU: 188780716
Price: 669.69 USD
Availability: InStock

(No ratings yet)

Check if this fits your vehicle

Key item features

Integrated Harness: Features a built-in Coil-On-Plug (C-O-P) harness for direct integration.
Enhanced Power: Includes an additional 40 amp relay specifically for powering individual coils, ensuring robust ignition.
Ford Compatibility: Pre-terminated for Ford Pulse Width Modulated (PWM) Idle Air Control (IAC) motors, commonly found on Fuel Injected Windsor 5.0L engines.
Robust Wiring: Constructed with 20 AWG gauge wire or larger for durability and reliable performance.
Modular Connectivity: Offers plug-and-play compatibility with Holley EFI 558-312 or 558-318 Smart Coil Sub Harnesses.
Expanded Network: Equipped with dual CANbus connectors to support multiple CAN devices.
Flexible Installation: Sensor lengths have been extended to accommodate various intake manifold designs, enhancing installation versatility.
Convenient Power: Provides a pre-installed Power Tap for easy access to 12V, 5V Reference, and Sensor Grounds.

Generated by AI

Specs

Vehicle make
Ford
Vehicle model
558-118
Automotive electrical part & accessory type
Wires
Compatible cars
Ford
Vehicle fitment type
Specific
Brand
HOLLEY EFI

Current price is $669.69

Price when purchased online

Free shipping
Free 90-day returns

How do you want your item?

I want delivery savings with

Try 30 days of Free Shipping with Walmart+! Choose plan at checkout.

How do you want your item?

Columbus, 43215

Arrives by Thu, Feb 5

Sold and shipped by Walmart.com

Free 90-day returns

This item is gift eligible

More seller options (2)

Starting from $665.95

Get free delivery, shipping and more*

*Restrictions apply

Try Walmart+ now

About this item

Product details

Ford MPFI Coil On Plug Main Harness;

This harness provides a plug and play upgrade solution for those seeking to convert to Coil-On-Plug. Additionally Holley has pre-installed a Power Tap for easy access to 12v, 5v Reference, and Sensor Grounds. The Ford MPFI C-O-P Main Harness has also been pre-terminated for the stock Pulse Width Modulated Idle Air Control motors commonly found on Fuel Injected Windsor 5.0L engines.;

Built in C-O-P Harness
Additional 40 amp relay to power individual coils
Pre-Terminated for Ford PWM IAC
20awq gauge wire or larger!
Plug and play with 558-312 or 558-318 Smart Coil Sub Harnesses
Dual CANbus Connectors for multiple CAN devices
Multiple sensor lengths have been extended to accommodate various intake designs

info:

We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.

Specifications

Vehicle make

Ford

Vehicle model

558-118

Automotive electrical part & accessory type

Wires

Compatibility

Ford MPFI Coil On Plug Main Harness

Warranty

Warranty information

Manufacturers Limited 90 Day Warranty

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Warranty url

https://www.nosoemparts.com/pages/returns

Warnings

Warning Text

California Proposition 65

WARNING: Cancer and Reproductive Harm - www.P65Warnings.com

Compare with similar items

Comparison Overview:
Product	Viewing this item Holley EFI 558-118 Ignition Harness current price $669.69 Holley EFI 558-118 Ignition Harness	Holley EFI 558-133 Engine Main Harness LS1/6 (24X/1X) , Extended Length current price $688.95 Holley EFI 558-133 Engine Main Harness LS1/6 (24X/1X) , Extended Length	Holley EFI 558-305 Ignition Harness current price $128.95 Holley EFI 558-305 Ignition Harness	Holley EFI 558-126 Engine Wiring Harness current price $435.95 Holley EFI 558-126 Engine Wiring Harness	Holley EFI 558-416 Fuel Injection Wiring Harness Adapter current price $41.22 Holley EFI 558-416 Fuel Injection Wiring Harness Adapter 5 out of 5 Stars. 1 reviews	Holley EFI 558-221 GDI Sub Harness - Late LTx Engine current price $152.95 Holley EFI 558-221 GDI Sub Harness - Late LTx Engine	Holley EFI 558-220 GDI Sub Harness - Early LTx Engine current price $152.95 Holley EFI 558-220 GDI Sub Harness - Early LTx Engine	Holley EFI 556-114 Engine Camshaft Position Sensor current price $357.95 Holley EFI 556-114 Engine Camshaft Position Sensor

Comparison Chart:
Vehicle make	FordHolley EFI 558-118 Ignition Harness	GMHolley EFI 558-133 Engine Main Harness LS1/6 (24X/1X) , Extended Length	FordHolley EFI 558-305 Ignition Harness	GMHolley EFI 558-126 Engine Wiring Harness	RAMHolley EFI 558-416 Fuel Injection Wiring Harness Adapter	GMHolley EFI 558-221 GDI Sub Harness - Late LTx Engine	GMHolley EFI 558-220 GDI Sub Harness - Early LTx Engine	ChevyHolley EFI 556-114 Engine Camshaft Position Sensor
Vehicle model	558-118Holley EFI 558-118 Ignition Harness	HOL558-133Holley EFI 558-133 Engine Main Harness LS1/6 (24X/1X) , Extended Length	558-305Holley EFI 558-305 Ignition Harness	LSHolley EFI 558-126 Engine Wiring Harness	-Holley EFI 558-416 Fuel Injection Wiring Harness Adapter	LTxHolley EFI 558-221 GDI Sub Harness - Late LTx Engine	LTxHolley EFI 558-220 GDI Sub Harness - Early LTx Engine	Big BlockHolley EFI 556-114 Engine Camshaft Position Sensor
Automotive electrical part & accessory type	WiresHolley EFI 558-118 Ignition Harness	WiresHolley EFI 558-133 Engine Main Harness LS1/6 (24X/1X) , Extended Length	AdaptersHolley EFI 558-305 Ignition Harness	WiresHolley EFI 558-126 Engine Wiring Harness	AdaptersHolley EFI 558-416 Fuel Injection Wiring Harness Adapter	WiresHolley EFI 558-221 GDI Sub Harness - Late LTx Engine	WiresHolley EFI 558-220 GDI Sub Harness - Early LTx Engine	-Holley EFI 556-114 Engine Camshaft Position Sensor
Compatible cars	FordHolley EFI 558-118 Ignition Harness	-Holley EFI 558-133 Engine Main Harness LS1/6 (24X/1X) , Extended Length	Avenger EFIHolley EFI 558-305 Ignition Harness	-Holley EFI 558-126 Engine Wiring Harness	-Holley EFI 558-416 Fuel Injection Wiring Harness Adapter	Late GM Gen V LTx EnginesHolley EFI 558-221 GDI Sub Harness - Late LTx Engine	Early GM Gen V LTx EnginesHolley EFI 558-220 GDI Sub Harness - Early LTx Engine	Big Block ChevyHolley EFI 556-114 Engine Camshaft Position Sensor