This main harness is built for 1999-2004 2-valve and 4-valve Ford Modular 4.6L and 5.4L engines running Holley Smart Coils.
Specifications:
- Application: Ford Modular 4.6L/5.4L (2V and 4V), 1999-2004
- Color: Black
- Harness Type: Main
- Designed For: Use with Holley Smart Coils
- Part Number: 558-113
Compliance: This part is legal for sale and use on Racing Use Only Vehicles — competition vehicles that are not registered and never operated on the street. It is against the law to install this part on an Emissions Controlled Vehicle (1966-and-newer California-certified or 1968-and-newer federally certified vehicles).
FAQ
What engines is this harness compatible with?
1999-2004 2-valve and 4-valve Ford Modular 4.6L and 5.4L engines.
Does this work with any ignition coil?
It's designed specifically for use with Holley Smart Coils.
Is this legal for street use?
No, it's legal for Racing Use Only vehicles and can't be installed on emissions-controlled street vehicles.

