Holley EFI 558-115 Fuel Injection Harness
( items)
Limited Time SaleUS$539.97 cheaper than the new price!!
Free cash-on-delivery fees for purchases over $99
Product details
| Management number | 254482540 | Release Date | 2026/11/07 | List Price | US$359.98 | Model Number | 254482540 | ||
|---|---|---|---|---|---|---|---|---|---|
| Category | |||||||||
Gen III HEMI Main Harness w Throttle Position Sensor & Idle Air Control, For use with Cable Throttle Body.;<br><br>Gen III HEMI Harness with TPS and Idle Air Control Connections.<br>This wiring harness interfaces a Holley EFI ECU to a Gen III HEMI engine with an aftermarket cable actuated throttle body. It is meant to be used in conjunction with an injector harness, a coil harness, and two ignition modules. Most stock sensors are used with this harness. There are two optional connectors for interfacing with CAN-based Holley modules.;
- Gen III Hemi Main Harness with IAC motor wiring/connector and TPS wiring/connector for a manual throttle body application
- Take control of your Gen III HEMI with Holley EFI by controlling fuel and spark. Great for power upgrades and engine swaps.
- Capable of tuning with power adders such as nitrous, superchargers or turbos and compatible with methanol and water injection
- Harnesses are available to connect to a Gen III HEMI engine for the most advanced fuel and timing controls available
- Each Harness is designed in fit and function specifically for the Gen III HEMI engine platform
- All wiring is TXL grade copper wiring with minimal weight, high temp sleeve in a small diameter
- Factory style terminations provide a strong, secure connection
- Connectors are OEM grade for a correct, positive fit
- Each harness is routed through a split-loom braid for protection and great looks
| Vehicle model | Gen III HEMI |
|---|---|
| Fuel injection accessory & part type | EFI Hemi Main Harness, Early, W/ Tps & Iac |
| Brand | Holley EFI |
| Automotive parts division | Performance |
| Vehicle fitment type | Specific |
| Material | TXL grade copper |
| Model | 558-115 |
| Weight | 5 oz |
| Has written warranty | No |
| Vehicle type | Car |
| Multipack quantity | 1 |
Bestseller ranking
Holley EFI
Correction of product information
If you notice any omissions or errors in the product information on this page, please use the correction request form below.
Correction Request Form