Sale

Ignitions and Electrical Wiring Harnesses

Holley

7.3L GODZILLA MAIN HARNESS W SMART COILS

$575.95 $520.80 Save $55.15

SKU: H00E 558-141

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

Easy — 1–2 hours

Description

The Holley 558-141 Terminator X Main Harness is designed for the 7.3L Godzilla engine. It provides advanced engine management with plug-and-play compatibility for fuel and ignition systems, and includes VVT and Oil Pump Connectors for use with IGN1A Smart Coils.

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 558-141

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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