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Home Fuel Injection Harnesses Holley EFI 558-420 TERMINATOR EFI I/O KIT
Special Order
Holley EFI 558-420 TERMINATOR EFI I/O KIT
  1. Holley EFI 558-420 TERMINATOR EFI I/O KIT

Holley EFI 558-420 TERMINATOR EFI I/O KIT

HOL558-420
OUT OF STOCK, Please contact us for availability BEFORE ordering. This is a SPECIAL ORDER part. This item can be brought in either with a stock order or on it’s own. Contact us today to discuss available options.

$55.54

Terminator® EFI Wiring Harness; Incl. 4 Extra Input Wires And 1 Extra Output Wire; Must Be Programmed Via Holley EFI Software;
PN 558-420 contains 5 extra input/output wires that the base Terminator EFI harness does not contain. It contains Input wires for Inputs 1-4. It contains one wire for Output 2. These inputs and outputs can perform features and functions that must be programmed via Holley EFI laptop software. The software also contains instructions on how to program these.
  • Can Perform Features And Functions
  • 205 lb./hr. Injector Harness

Additional Information:

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Through our distribution network Deliveries can be as fast as Next Day Delivery.
Delivery times vary by destination, tracking information is provided with every purchase.

Get it Installed

JB's Power Centre offers on-site professional installation services in Calgary and Edmonton, AB.
We have on staff licensed Mechanical Technicians as well as MECP Certified 12-Volt Technicians.

* Extend your products Manufacturer Warranty

All products include a manufacturer warranty, but you can extend this warranty with
JB's Purchase Protection Plan
*Available on select products.