• Holley 558-400 Dominator EFI J1A/B Input/Output Wiring Harness
  • Holley 558-400 Dominator EFI J1A/B Input/Output Wiring Harness

Holley 558-400 Dominator EFI J1A/B Input/Output Wiring Harness

$135.95 USD
$135.95 USD
$135.95 USD
Shipping calculated at checkout.

Vendor : HOLLEY

Product Type : Ignitions and Electrical

Sku : HLY558-400

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J1A/B Input/Output Connector

The Holley 558-400 EFI Wiring Harness is designed for use with Holley Dominator EFI systems. This harness provides the J1A/B input/output connector interface for supported system wiring applications.

Built as a dedicated replacement or installation component, the harness helps organize the connection of J1A/B inputs and outputs within a compatible Holley Dominator EFI setup. Its application-specific design supports a clean, direct wiring solution without unnecessary modification.

The Holley 558-400 is supplied as one wiring harness. Confirm application requirements and connector compatibility before installation to ensure it is appropriate for your EFI system.

Features:

  • Brand: Holley
  • Part Number: 558-400
  • Application: Holley Dominator EFI systems
  • Connector: J1A/B input/output connector
  • Product Type: EFI wiring harness
  • Quantity: Each