GM PWM Alternator Harness 558-475
Price :
$86.95
SKU : 558-475
Subtotal: $86.95
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Limited Time Offer:
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GM PWM Alternator Harness 558-475

HOLLEY EFI
Plug and play Holley EFI alternator harnesses for late model engines with Pulse Width Modulated alternators. This includes most 2007+ GM engines and most 2005+ Ford engines.

Features:

  • Plug and play with Holley EFI and Terminator X main harnesses
  • 2007+ PWM GM alternators
  • Use with late model OEM alternators
  • Include detailed instructions for installation and software configuration

About Holley EFI

Find standalone EFI for LS, Coyote, Hemi and more at Holley.com. From engine swapping to managing up to 4000 horsepower, we have a solution for every project!

Shipping
Discover our reliable shipping options and delivery times. We ensure your orders are delivered safely and promptly, right to your doorstep.
Return policy
Our hassle-free return policy guarantees your satisfaction. If you're not completely satisfied with your purchase, we make it easy to return or exchange items within 30 days.

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