Holley EFI

Holley EFI 558-308 Main Power Harness

Main Power Harness for Avenger EFI, HP EFI, & Dominator EFI

Part # 558-308 Be the first to write a review
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$77.88
Suggested Retail
$86.53
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3

Emissions

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

See Emissions Details
This Harness is required with HP or Dominator ECUs. Includes, 13' long, 10 AWG main power harness, Qty. (2) 3/8 in. ring terminals and shrink tube (not pictured) . The harness is fuse protected and covered in braided split loom for additional abrasion protection .
Brand Holley EFI
Emission Code3
Product TypeMain Power Harnesses
UPC090127666791
Manufacturer Part Number558-308
Part Number558-308
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
The Main Power Harness MUST be connected directly to the Battery terminals.

Do not connect them to any other location such as a disconnect switch, starter solenoid or distribution lug. The harness length is 13 feet. If you need to extend the length do so with 8 AWG or larger multi-strand wire.
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    Some parts are not legal for use in California or other states with similar regulations.