Holley EFI 558-504 Fuel Injection Harness
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US$359.98
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Product details
| Management number | 254510039 | Release Date | 2026/11/07 | List Price | US$359.98 | Model Number | 254510039 | ||
|---|---|---|---|---|---|---|---|---|---|
| Category | |||||||||
Universal V8 MPFI;<br><br>An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Holley's Holley EFI Harness Kit comes complete with the main harness, power harness and injector harness to support your primary system!;
- Harness Kit Includes; Main Power Harness, Universal MPFI Main Harness, v-8 Injector Harness
- Simple installation
- Works with HP or Dominator ECU's
| Fuel injection accessory & part type | Fuel Injection Harness |
|---|---|
| Brand | Holley EFI |
| Automotive parts division | Performance |
| Vehicle fitment type | Specific |
| Items included | Main Power Harness, Universal MPFI Main Harness, v-8 Injector Harness |
| Accessories | Main Power Harness, Universal MPFI Main Harness, v-8 Injector Harness |
| Features | Universal |
| Model | 558-504 |
| Weight | 5.55 lb |
| Has written warranty | No |
| Vehicle type | Car |
| Multipack quantity | 1 |
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