Holley EFI Unterminated 15' Flying Lead Main Harness


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SKU: 558-126 Holley

Supreme Quality

Generous Return Policy

The unterminated main harness comes with both J1A and J1B connectors full terminated with 15' of flying lead wiring.


  • 15’ long flying lead harness, allows you to completely customize your main harness installation
  • 60 Holley Crimped Wires (57x 20 ga, 3x 18 ga)
  • 30 optional plug seals