Holley EFI GM Gen V GDI Sub Harnesses 558-221 Wiring Harnesses, EFI, V, Late, Sub-Harness, Direct Injection, Pre-Terminated, 4-pin Fuel Sensor, GM, Late LT Based, Engines, Each
Holley EFI GM Gen V GDI Sub Harnesses 558-221 Wiring Harnesses, EFI, V, Late, Sub-Harness, Direct Injection, Pre-Terminated, 4-pin Fuel Sensor, GM, Late LT Based, Engines, Each
A$537.19
LOW STOCK! Est Ship 4-7 days.
In stock at 1 location
(3 available)
We accept
Description
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 02:16:40
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 | hly558-221 |
| SFX Item ID | 4783755 |
| Accounting SKU | hly-558-221 |
| Manufacturer SKU | 558-221 |
| Manufacturer UPC | 090127140833 |
| Alternative References | 558-221, HLY-558-221, HOL558-221 |
Wiring Harnesses, Holley EFI, GM Gen V, GDI Late, Sub-Harness, Direct Injection, Pre-Terminated, 4-pin Fuel Sensor, GM, Late LT Based, Engines, Each
Holley EFI GM Gen V GDI sub harnesses are available for early and late LTx engines. The GM fuel pressure sensor is mounted to the back of the driver-side fuel rail and is the identifier of each engine. Depending on which one your engine has will determine which Holley EFI GM Gen V GDI sub harness is required. Late engines use a 3-pin, and the early engines use a 4-pin fuel pressure sensor. Choose the appropriate sub harness for your engine.
| Product Attributes | |
|---|---|
| Brand | Holley |
| Manufacturer's Part Number | 558-221 |
| Part Type | Wiring Harnesses |
| Product Line | Holley EFI GM Gen V GDI Sub Harnesses |
| UPC | 90127140833 |
| Harness Length | Standard |
| Fuse Block Included | No |
| Quantity | Sold individually. |
Compatibility
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