Sale

Ignitions and Electrical› Wiring Harnesses

Holley

MAIN HARNESS, FORD COYOTE TI-VCT SMART

$1,094.95 $972.95 Save $122.00

SKU: H00E 558-122

In Stock
In Stock
Ships by Jun 8
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

A direct-fit, plug-and-play wiring harness for exceptional engine management performance. Designed for data logging, gauge monitoring, and seamless compatibility with the HP Smart Coil system, simplifying complex wiring tasks. Features a robust weather-tight structure, matte black finish, and precise pre-cut measurements for clean, secure installation. Connections are durable, corrosion-resistant, and labeled for easy identification.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandHolley
Part NumberH00E 558-122
Weight4.6 lb

Videos

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Holley Terminator X Max Standalone for Coyote VCT, Drive by wire, Boost Control - Stick Shift GT500

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Holley EFI’s Smart Coil Kits for Coyote and Gen III Hemi Will Support Up To 3,000 Horsepower

Holley EFI’s Smart Coil Kits for Coyote and Gen III Hemi Will Support Up To 3,000 Horsepower
Nothing is ever "Plug n Play". Installing a Holley Dominator on a Gen 3 Coyote Mustang GT!

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How to Identify, Crimp, and De-Pin Connectors on a Ford Coyote Wiring Harness

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Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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