Ford Engine Harness M-12071-E302 and M-12071-H302

5.0 EFI Wiring Harnesses (Ford Motorsport) - Ford 5.0 Engine Harness

Ford 5.0 Wiring Harness wire colors

Ford Main Harness M-12071-C302

This diagram shows the wire colors and connectors and what their purpose is on the Ford 5.0L engine.

5.0 EFI Wiring Harnesses (Ford Motorsport) - Ford 5.0L Main Harness

H.E.G.O. Sensor Harness M-12071-D302/H302

5.0 EFI Wiring Harnesses (Ford Motorsport) - Ford 5.0L Sensor Harness

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About The Author

Founder / Administrator at  | Staff Profile

Jim Oaks is the founder of The Ranger Station (TRS), one of the longest-running Ford Ranger enthusiast communities on the web. He has spent over three decades owning, modifying, repairing, and driving Ford Rangers on the street, trail, and overlanding routes.

Since launching TheRangerStation.com in 1999, Jim has documented thousands of real-world Ranger builds, technical repairs, drivetrain swaps, suspension modifications, and off-road adventures. TRS has been heavily referenced by enthusiasts, mechanics, and off-road builders looking for practical, experience-based information.