2009+ GM 4L60E Transmission Control Harness 558-455
Expanding on our Transmission Control options from Holley EFI. This new harness 558-455 from Holley EFI provides plug and play transmission control for the 2009+ GM 4L60 when used with a Dominator ECU. 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.
- Built in Relay - Must be wired to a switched 12v source.
- Plug and play with 2009+ GM 4L60E Transmissions
Requires software version 5.0 build 100 or higher and ECU firmware 5.0 build 110 or higher
- Holley EFI
- Item Requires Shipping
- W10.0000” x H2.0000” x L10.0000”
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