The CTA Ford Fuel Injector Sleeve Cup Remover & Installer - 6.4L, No. 3874, is designed to remove and install fuel injector sleeve cup, saving technicians time by eliminating the need to remove heads. The tool services: 2008-2010 Ford 6.4L Power Stroke Diesel on F-250, F-350, F-450, and F-550. It also services 2008-2010 Maxxforce 7.