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Holley EFI 558-475 Pulse Width Modulated (PWM) Alternator Harness

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$71.78

$ 28 .99 $28.99

In Stock
  • Plug and play with Holley EFI and Terminator X Main Harnesses
  • Designed for use with 2007-up late model factory alternators
  • Includes detailed instructions for software configuration


Compatible with 2007+ PWM GM Alternators with Holley EFI and Terminator X Main Harnesses. This product is not created or sold by GM.;
Plug and play Holley EFI alternator harnesses for late model engines with Pulse Width Modulated alternators.;