Fitment: Air Test Fitting Tool is a replacement for E?350 E?450 F?450 F?550 6.0L V8 Turbocharged 2004?2010; Replacement for Excursion 6.0L V8 Turbocharged 2003?2010 and more. Opening mould in original car data, ensures perfect match, high accuracy..Oil Rail Adapters: Allows to observe the injector control pressure (ICP) of the high pressure oil system through direct instrument connection, and helps to test the leakage of the high pressure oil system. With high reliability, the Fuel Rail Adapter is not easy to be damaged and can function well for you..Important Accessories: Engine builders can quickly verify that an engine has no high pressure oil leaks before installing the engine into the vehicle where repairs are much more difficult..IPR Valve Air Test Fitting Tool: Equipped with 1/4in pipe threads to accommodate standard air fittings. It replaces the IPR valve and keeps the system completely sealed to avoid any possible leakage..Durable Construction: hined from brass and steel with excellent mechanical and physical properties, these adapter fittings provide high sealing, strength and durability. Built to meet original standard specification, strictly follows the factory quality control.