The 558-444 is Holley's service replacement harness for its digital dash, carrying the CAN Bus and USB connector wiring in a black finish for a clean factory-style fix.
Specifications:
- Product Type: Harness Kit
- Wiring: CAN Bus and USB connector wiring
- Color: Black
- Part Number: 558-444
FAQ
What does the 558-444 harness replace?
It's a service replacement for Holley's digital dash harness.
What wiring does it include?
CAN Bus connector wiring and USB connector wiring.
What color is the harness?
Black.

