Installing a tachometer or shift-light on a late-model Ford engine is a breeze with AutoMeter's plug-and-play Ford Tach Adapter Harness. With this product you can save time, money, and avoid cutting any factory wiring. This quick and easy solution lets you connect to AutoMeter 9117 Tach Adapter to your late-model Ford engine in minutes. OEM connectors and wiring make installation hassle-free, with no splicing or warranty worries. It's fully reversible and designed for a perfect fit to work right the first time.