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Holley

Holley EFI Digital Dash I/O Adapter with Wiring Harness Kits 558-433 Data Acquistion Harnesses, EFI, and Unterminated Vehicle Harness, for 7 in. Dash, USB Memory Stick Included, Kit

SKU: HLY558-433

Data Acquisition Wiring Harnesses
Holley EFI Digital Dash I/O Adapter with Wiring Harness Kits 558-433 Data Acquistion Harnesses, EFI, and Unterminated Vehicle Harness, for 7 in. Dash, USB Memory Stick Included, Kit

Holley

Holley EFI Digital Dash I/O Adapter with Wiring Harness Kits 558-433 Data Acquistion Harnesses, EFI, and Unterminated Vehicle Harness, for 7 in. Dash, USB Memory Stick Included, Kit

SKU: HLY558-433

Data Acquisition Wiring Harnesses
A$794.80
IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

Holley EFI Digital Dash I/O adapter with wiring harness kits offer more performance from your digital dash. Available terminated or unterminated, these vehicle harnesses provide 10 additional inputs/outputs to your 7 in. unit. They can be configured for gauges or switches and data-logged locally through your digital dash. The adapters bring out connections to a waterproof 26-pin connector, similar to ones used on EFI units, and the kits include a USB memory stick to update digital dash firmware that supports the adapter.

Part Type

Wiring Harness - EFI Digital Dash I/O Adapter

Data: v4.2 - Upd: 2026-10-16 02:06:02

Specifications

Product Attributes - Brand
Holley
Product Attributes - Manufacturer's Part Number
558-433
Product Attributes - Part Type
Data Acquisition Wiring Harnesses
Product Attributes - Product Line
Holley EFI Digital Dash I/O Adapter with Wiring Harness Kits
Product Attributes - UPC
090127734391
Product Attributes - Quantity
Sold as a kit.
Product Attributes - Notes
For Holley 7 in. digital dash. Includes unterminated vehicle harness. Includes USB memory stick for updating firmware.

Reference Information

Brand Name/s Holley
StreetFX SKU hly558-433
SFX Item ID 4784310
Supplier Item Code 4784310
Manufacturer SKU 558-433
Manufacturer UPC 90127734391
Alternative References HOL558-433

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