Holley EFI Terminator X LT Main Engine Harnesses 558-129 Wiring Harnesses, EFI, Gen V, Engine, Harness, for X, Max, ECU Only, Chevy, 5.3L, 6.2L, Each
Holley EFI Terminator X LT Main Engine Harnesses 558-129 Wiring Harnesses, EFI, Gen V, Engine, Harness, for X, Max, ECU Only, Chevy, 5.3L, 6.2L, Each
A$1,430.08
LOW STOCK! Est Ship 4-7 days.
In stock at 1 location
(2 available)
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Description
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 02:16:50
Features
Vehicle Compatibility and Return Conditions.
This item was designed and engineered in the USA for US domestic vehicles. OBD tools, ECUs, dongles, programmers, and tuners may have limited compatibility with vehicles outside the USA due to regional differences in emission standards and system configurations. Some features and functionality may vary depending on the vehicle and location.
Some electronic tuning devices and programmers require activation, registration, or pairing with a specific vehicle’s VIN (Vehicle Identification Number). Once activated or paired, these devices may become permanently associated with that vehicle, restricting or preventing their use on another vehicle, resticting our ability to offer returns or exchanges.
Please review the product details and images to ensure it meets your needs. For clarification or assistance, feel free to contact a StreetFX agent. Note: Returns are not accepted for special order or tuning products unless the unit is deemed faulty.
Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.
Specifications
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | Holley, Hilborn, Holley Efi, Retrobright, Terminator X |
| StreetFX SKU | hly558-129 |
| SFX Item ID | 4783916 |
| Accounting SKU | hly-558-129 |
| Manufacturer SKU | 558-129 |
| Manufacturer UPC | 090127140802 |
| Alternative References | 558-129, HLY-558-129, HOL558-129 |
Wiring Harnesses, Holley EFI, Gen V, LT Engine, Main Harness, for Terminator X, Terminator X Max, ECU Only, Chevy, 5.3L, 6.2L, Each
Terminator X standalone engine management systems offer performance at a budget price with plug-and-play operation. For use with these ECUs, Holley EFI Terminator X LT main engine harnesses are available to make connecting and servicing your system easier. Choose the one designed for your application.
| Product Attributes | |
|---|---|
| Brand | Holley |
| Manufacturer's Part Number | 558-129 |
| Part Type | Wiring Harnesses |
| Product Line | Holley EFI Terminator X LT Main Engine Harnesses |
| UPC | 90127140802 |
| Harness Length | Standard |
| Fuse Block Included | No |
| Quantity | Sold individually. |
| Notes | This harness is designed for use with Terminator X and X Max ECU's only. |
Compatibility
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