Pre-terminated connectors for crank, cam, TPS, main power, and EFI sensors enable quick setup and testing
Plug-and-play ignition capability with dual sync and hyperspark distributors simplifies installation
Compatible with multiple ECU brands including Holley Dominator, HP, Terminator X, X Max, and Sniper
Includes power switch for fast workspace setup and flying leads for flexible power sourcing
OEM PWM IAC connector supports Ford's idle air control motor for precise engine tuning
Summarized by Shop
5.0L Ford Engine Main Harness
Test Harness for Firmware Updating, Dash Configuration, and ECU Testing.
Overview Designed for benchtop testing and setup of HP, Dominator, Terminator X, Terminator X Max, and Sniper ECU's, as well as 7" dashes.
Great for ECU diagnostics, firmware updating, or pre-configuring dash layouts without being in the v
Harness Type
Main harness
Compatible Engines
5.0L, 5.8L Windsor powerplants
Ignition Adapter Required
558-305 for TFI distributors
Connector Types
Crank, cam, TPS, main power, EFI (Sniper), PWM IAC