Holley EFI 558-312 Ignition Harness
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US$119.98
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Product details
| Management number | 254294543 | Release Date | 2026/11/07 | List Price | US$119.98 | Model Number | 254294543 | ||
|---|---|---|---|---|---|---|---|---|---|
| Category | |||||||||
For use with Holley® HP and Dominator ECUs and other EFI systems;<br><br>HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart Coils. They plug into Holley LSx plug and play main harnesses if one wants to replace factory LSx coils with Holley HP Smart Coils. If using a non-LSx main harness, purchase PN 558-307 for connectors, wiring, terminals to connect directly to a Holley HP or Dominator ECU;
- Includes a pair of coil harnesses for an 8 cylinder engine
- Similar to factory GM LSx coil harnesses
- For use with Holley HP or Dominator ECUs
| Manufacturer part number | 558-312 |
|---|---|
| Automotive electrical part & accessory type | Connectors |
| Compatibility | Holley HP and Dominator ECUs and other EFI systems |
| Vehicle fitment type | Specific |
| Brand | Holley EFI |
| Vehicle model | 558-312 |
| Assembled product weight | 0.95 lb |
| Rec. use | Automotive |
| Items included | A pair of coil harnesses for an 8 cylinder engine |
| Accessories | Coil Harnesses |
| Count per pack | 1 |
| Vehicle type | Car |
| Has written warranty | No |
| Has nrtl listing certification | N |
| Model | 558-312 |
| Automotive parts division | Performance |
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Automotive Electrical
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