Holley EFI 558-126 FLYING LEAD MAIN HARNESS

Holley EFI
HOL558-126
Heads up — this is a Special Order item. We don't carry it on the shelf, but we can bring it in for you! Lead times vary and can be 10 weeks or more depending on the manufacturer. Give us a call or send us a message so we can check current availability and walk you through your options before you commit to an order.
$629.93
$610.33
$629.93

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Holley EFI 558-126 FLYING LEAD MAIN HARNESS

Vendor: Holley EFI

Holley EFI 558-126 FLYING LEAD MAIN HARNESS

$610.33 $629.93

Vendor: Holley EFI

Holley EFI 558-126 FLYING LEAD MAIN HARNESS

$610.33 $629.93
Unterminated Main Engine Wire Harness; Incl. Both J1A and J1B Connectors Full Terminated w/15 ft. Flying Lead Wiring;
Are you wanting to fully rewire your Holley EFI installation? Or perhaps you are starting a new build, and want to wire everything perfect the first time. Introducing two new items from Holley EFI that will help you accomplish your goal. The unterminated main harness comes with both J1A and J1B connectors full terminated with 15' of flying lead wiring. If you already have your own wire and simply need the connectors and pins, we have you covered with our new ECU connector and pins kit, allowing you to fully terminate your own custom main harnesses! Check out this part and all of our other great Holley EFI Wiring Shop items, such as sensor connectors, 3 and 7 wire cable and much more!
  • Pre-Terminated J1A and J1B Tyco Superseal Connectors
  • 60 Holley Crimped Wires (57x 20 ga
  • 3x 18 ga)
  • 15 ft. Long Flying Lead Harness
  • Allows Completely Customize Your Main Harness Installation