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-10% Transmission Harness, GM 4L60/80E

Holley Dominator EFI currently supports the use of 4L60E, 4L65E, 4L70E, 4L80E, and 4L85E transmissions.  PN 558-405is a fully terminated harness for these applications.  Note that you must select the correct year range of the transmission to ensure that you receive the correct harness.  The 558-455 4L60E transmission harness for the 2009+ GM 4L60E contains an internal turbine speed sensor, which was not on the previous model year transmissions. Additionally, the valve body range selector is wired and controlled differently from the ECU. When using the 558-455 harness you must upgrade your Dominator ECU to firmware version 5.0 Build 110 (or higher) and use PC software version 5.0 Build 100 (or higher.)

Loose Wires on 558-405:

  • RED: Battery Power (via fuse)
  • RED-WHITE: Switched 12-Volts
  • BLACK: Battery Ground
  • GREY: Brake Switch
General
Application558-405: GM 4L60E, 4L65E, 4L70E, 4L80E, and 4L85E transmissions pre-2009. 558-455: GM 4L60E transmissions 2009+
OEM ReplacementNo
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Transmission Harness, GM 4L60/80E

  • Views: 5082
  • Brand: Holley
  • Product Code: 558-405 | 558-455
  • Availability: In Stock
  • $220.00
  • $197.95

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