Ignitions and Electrical› Computers, Chips, Modules and Programmers
Holley
KIT I/O ADAPTER WITH UNTERMINATED VEHICLE HARNESS
SKU: H00E 558-433
Easy — 1–2 hours
Description
Part #: 558-433
I/O Adapter w/Unterminated Vehicle Harness
Features:
- Provides ten addiitonal inputs/outputs to the 7" digital dash
- Brings out connections to a waterproof 26 pin connector similiar to ones used on EFI units
- Item includes USB memory stick to update digital dash firmware that supports adapter
Digital Dash I/O Adapter with unterminated Vehicle Harness
Fitment
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Available on iOS & Android
Specifications
| Brand | Holley |
| Part Number | H00E 558-433 |
| Weight | 2.55 lb |
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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