Installation Time
(approx) 2 Hours
Difficulty Level:
Light to Moderate mechanical skill required.
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$285.95 each
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Features, Description, Q&A, Specs & Installation
Transmission Control Solution. The Holley EFI Transmission Control Harness for 4R70W/4R75W transmissions provides a streamlined, plug-and-play wiring solution to enable effective communication between Ford 4R70W and 4R75W automatic transmissions and EFI systems. This harness optimizes shifting and performance by simplifying electronic transmission integration, enhancing drivability and control.
Construction and Appearance. Made with high-quality automotive-grade wiring and connectors, the harness features a fully terminated design that includes a robust J4 connector and an additional line pressure sensor connector. Durable insulation protects the wiring to ensure reliability and longevity under automotive operating conditions.
Installation. Installation is straightforward and requires no cutting or splicing of wires. The fully terminated, plug-and-play design makes the harness easy to install without drilling or modifications, suitable for both professional technicians and experienced enthusiasts.
Application. This harness fits 1999-2003 Ford F-150 trucks equipped with Ford 4R70W/4R75W transmissions. It is not compatible with 4WD models. Proper function requires Dominator ECU software version 4.0 build 32 or higher and ECU firmware 4.0 build 110 or higher.
Holley EFI 558-470
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation Info
Installation Time
(approx) 2 Hours
Difficulty Level:
Light to Moderate mechanical skill required.
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