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Holley EFI

Holley EFI 558-456 Pro-Dash Input/Output Harness

Part # 558-456 Be the first to write a review

Unterminated Input/Output Wiring Harness

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Holley EFI 558-456 Pro-Dash Input/Output Harness

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$299.95
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The 558-456 wiring kit is intended to fully populate all of the inputs and outputs for PNs 553-111 and 553-112 Pro Dashes. These can easily be inserted into the existing 34 pin dash connector. It contains loose wires and 2 and 3 conductor cable (jacketed but not shielded). The wire is 20
gauge TXL. There are TE Superseal pins crimped on every wire and cable. There are also extra pins that can be used
(likely needed when using the jacketed cable for more than one sensor). The kit contents include the following. The
installer can choose to match the color and functions given in the instructions for consistent installations.

17 loose wires (10 feet each) with crimped tyco pins, in various colors.

2 Conductor Cable (Black/Blue) 20 Feet
3 Conductor Cable (Orange/Green/Black)40 Feet

Superseal Pins 20
Superseal Plugs 20
Brand Holley EFI
Emission Code3
Product TypeInput/Output Harnesses
WarrantyManufacturer's Limited 90 Day (1 Year with Warranty Registration)
UPC090127101780
Manufacturer Part Number558-456
Part Number558-456
3

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles and Racing Use Only Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition and that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle
Wiring and Setup for 558-456
Downloading Instructions
Manufacturer's Limited 90 Day (1 Year with Warranty Registration): See Details
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    Some parts are not legal for use in California or other states with similar regulations.

    Holley EFI 558-456 Pro-Dash Input/Output Harness
    Holley EFI 558-456 Pro-Dash Input/Output Harness
    $299.95