Ford Engine Harness M-12071-E302 and M-12071-H302
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.
H.E.G.O. Sensor Harness M-12071-D302/H302
Jim Oaks is the founder of TheRangerStation.com, the longest-running Ford Ranger resource online since 1999. With over 25 years of hands-on experience building and modifying Ford Rangers — including magazine-featured builds like Project Transformer — Jim has become one of the most trusted authorities in the Ford Ranger off-road and enthusiast space. In 2019, he was loaned a Ranger FX4 by Ford Motor Company to test and document across the TransAmerica Trail. Jim continues to inspire and guide Ranger owners around the world.