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Holley EFI Pro Dash Input/Output Harness

Part # 558-456

Unterminated input/output wiring

Holley EFI Pro Dash Input/Output Harness

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Free Shipping - Lower 48 US States
Advertised Price $282.95
$254.65
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3

Emissions

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

See Emissions Details
This wiring kit is intended to fully populate all of the inputs and outputs for part numbers 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). 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).

Features:

  • 2 conductor cable (Black/Blue); 20 ft.
  • 3 conductor cable (Orange/Green/Black); 40 ft.
  • 17 loose wires with crimped Tyco pins in various colors; 10 ft. each
  • 20 superseal pins
  • 20 superseal plugs
  • 20 gauge TXL wire

About Holley EFI

Find standalone EFI for LS, Coyote, Hemi and more at Holley.com. From engine swapping to managing up to 4000 horsepower, we have a solution for every project!

Brand Holley EFI
CategoryAir and Fuel Delivery
Emission Code3
End 1 Terminal TypePin
End 2 Terminal TypePin
Grade TypePerformance
Part TypeElectronic Throttle Harness
Product TypeHarness
Sub CategoryBody Wiring Harness and Components
Wire ColorVarious
Wire Gauge Measurement20
UPC090127101780
Part Number558-456
3

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) 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


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
The installer can choose to match the color and functions given in the instructions for consistent installations.

*Free Shipping and Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

Some parts are not legal for use in California or other states with similar regulations.

Holley EFI Pro Dash Input/Output Harness
Holley EFI Pro Dash Input/Output Harness
Advertised Price $282.95
$254.65
Save $28.30