These Injector Caps Used to Block Off the Fuel Rail During Fuel Pressure Diagnostics in 2003-2022 Cummins 5.9 6.7 Engines, 2001-2022 Duramax 6.6 Engines and compatible with 2008-2022 Ford 6.4 6.7 Engines.
Rail injector block off tool can helps in identification of faulty injectors and also used to identify engine knock sounds.
Made of Carbon Steel Material, antirust processed.
Stringently tested and design for works on most of diesel fuel pressure diagnostics.