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Vehicle Info NeededHOLLEYPART NUMBER: 510-558-448
558-448 J1A/J1B ECU Connector Kit
$7795
Ships on 09/09/2026
Lowest Price GuaranteeJ1A & J1B Connectors
J1A/J1B ECU Connector KitPre-Terminated J1A and J1B Tyco Superseal Connectors (60) 20-22 Gauge Pre-Terminated Wires (20) 16-18 Gauge Pre-Terminated Wires (30) Cavity Plugs
Holley 558-448 Features:
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
EFI Custom Wiring Components
Whether you are servicing an existing EFI electrical system or wiring a new one, Holley has you covered with their extensive line of OE-style wiring components. Previously unreleased connectors, wire looms and more are available à la carte to allow limitless combinations so you can get exactly what you need for your custom project. All Holley EFI Electrical Connectors include all applicable pins, seals, and TPA.
Part TypeElectrical Connector
Product LineHolley EFI Electrical Connectors, Wiring Components and Tools
BrandHOLLEY
Package Height2.0
Package Width3.0
Package Length7.0
Weight0.39 PG
Part CategoryPerformance Parts
Part FitmentUniversal
Package Qty1
Package TypeEA
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