The CTA Ford Fuel Injector Seal Installer, No. 3871, properly sizes and installs the injector seals for Ford 1.6L, 2.0L, 2.3L, 3.5L, and 3.7L GTDI engines from 2010 and up models. The tool can be compared to Ford's 310-207, and 303-1567 factory tools, the company says.