Holley
HOLLEY GENIII HEMI SMART COILS, SINGLE
SKU: H00E 556-162
Description
Part #: 556-162
These Holley EFI Smart Coils are a bolt-in ignition upgrade for your late model HEMI or Coyote engine. Here's the difference over a stock coil; they produce more spark energy while consuming less power without sacrificing voltage output. This means you get hotter spark at the plug to burn the maximum amount of fuel in each cylinder while using less power from your electrical system.
Features:
- Direct bolt-on to factory valve covers
- Same wiring pinout as other IGN-1A coils for easy plugin upgrades (Will not work with factory wiring)
- More spark energy than any other smart coil on the market for maximum fuel burn during combustion sequence
- Low current draw means less demand on the electrical and charging system
- Built-in ignitor for compatibility with Holley EFI and many other aftermarket ECU's
- Maximum operating voltage of 18 volts - for compatibility with both 12 volt and 16 volt electrical systems found in many performance/race applications
Black, Single Coil
Fitment
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Specifications
| Brand | Holley |
| Part Number | H00E 556-162 |
| Weight | 1.57 lb |
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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