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Holley EFI J1A/J1B ECU Connector Kit 558-448

Holley EFI J1A/J1B ECU Connector Kit 558-448
Holley EFI J1A/J1B ECU Connector Kit 558-448Holley EFI J1A/J1B ECU Connector Kit 558-448
$142.99 ea
NEWARRIVING SOONEstimated Ship Date 03/22/2024 (If Ordered Today)29 Available from HOLLEY PERFORMANCE PRODUCTS as of 02/29/2024
Model: 4007859
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!
  • Pre-Terminated J1A and J1B Tyco Superseal Connectors
  • 60x - 20-22ga pre-terminated wires
  • 20x - 16-18ga pre-terminated wires
  • 30 cavity plugs

About Holley Performance Products

Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every Monster Energy NASCAR Cup team and nearly every NHRA Pro-Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds and engine dress-up products for street performance, race and marine applications. As a single solution or partnered with products from other Holley companies we can give you the edge you need over the competition!


Emission Code 5
Part Type Electrical Pin Connector
Product Type Connector Kit


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Holley EFI J1A/J1B ECU Connector Kit 558-448:
Classic Chevy 2024