Holley EFI 558-417 Electronic Throttle Harness

Gen III HEMI Drive-By-Wire Harness - Early Harness with the larger TYCO/AMP connector ('03-'07 cars, '03-'06 trucks) Dominator EFI Only

Golden Rule: These are plug-and-play harnesses. If they don't plug, don't play.

Only the 0459 1847 factory drive-by-wire throttle body has been pre-calibrated and approved for use with these harnesses;

Similar to the changes with the cam and crank sensors, the Drive-By-Wire throttle pedal connector was changed in 2008 on cars while the trucks changed in the 2007 models. Interestingly, the throttle body connector is consistent on all engines. The early pedals use a larger connector. View the image gallery to see both types.;