OTC's 5877 Injector Cup Removal/Installation Tool Set is the ideal solution for removing screw-in stainless steel injector cups from 60 Series Detroit Diesel engines. Ruggedly constructed tools allow easy, damage-free, removal and installation of both styles of stainless injector cups used on these engines. One tool is designed for use on screw-in stainless cups 240-1039,  23538840, 240-1035, and 23533148. The other tool is for use on screw-in stainless cups 240-1045,  23534745, and 23538829. Includes 10 extra O-rings. Tools are similar to Kent-Moore J-46904 and J-48824. NOTE: Not for use on screw-in brass cups. Proudly made in the USA. Value is at the core of the OTC tool and equipment portfolio. For a simple repair or the most complex drivability concern, these award-winning tools universally solve problems faster, and at better value, than any other product line available. Whether it's a specialty tool or unique piece of service equipment, OTC provides top solutions to modern automotive service challenges while increasing technicians' productivity and shop profits.