• Holley 558-405 EFI Transmission Wiring Harness for GM 4L60E and 4L80E
  • Holley 558-405 EFI Transmission Wiring Harness for GM 4L60E and 4L80E

Holley 558-405 EFI Transmission Wiring Harness for GM 4L60E and 4L80E

$318.95 USD
$318.95 USD
$318.95 USD
Shipping calculated at checkout.

Vendor : HOLLEY

Product Type : Ignitions and Electrical

Sku : HLY558-405

✔ Veteran-Owned Business  |  ✔ Verified Fitment (SEMA Data)  |  ✔ Ships 1–3 Business Days  |  ✔ 30-Day Returns 

Trans Wire Harness GM 4L60 Pre 2009 - 4L80

The Holley 558-405 EFI Wiring Harness is designed for transmission connections in applications using Holley Dominator EFI systems. It supports GM 4L60E and 4L80E automatic transmissions, providing a dedicated harness solution for integrating the transmission with the EFI system.

This harness is identified for GM 4L60E applications before 2009 and GM 4L80E applications. Its transmission-specific design helps simplify wiring for compatible engine management installations while maintaining a direct, organized connection between the EFI system and transmission.

The Holley 558-405 is sold as an individual transmission wiring harness. Verify the EFI system and transmission application before ordering to ensure this harness matches the intended installation.

Features:

  • Application: Transmission wiring harness for Holley Dominator EFI systems
  • Transmission Compatibility: GM 4L60E and 4L80E automatic transmissions
  • Model Reference: GM 4L60E applications before 2009
  • Product Type: EFI transmission wiring harness
  • Quantity: Sold individually