These 12mm 14mm 16mm 18mm 20mm caps used to block off the fuel rail during fuel pressure diagnostics, works on 2003-2022 Cummins, 2001-2022 Duramax, and 2008-2022 Ford engines, also can works on others with same injector lines. Replaces part # 10810
The fuel injector caps can helps in identification of faulty injectors and also used to identify engine knock sounds, designed to effectively block fuel supply to cylinders or seal the common rail pipe
To identify the individual defective cylinder, you can remove the diesel fuel injection line from the cylinder and install this replacement cap on the fuel rail line
Constructed of high-quality carbon steel, antirust processed. High strength for ensuring perfect application
Includes M12x1.5(12mm) Cap, M14x1.5(14mm) Cap, M16x1.5(16mm) Cap, M18x1.5(18mm) Cap & M20x1.5(20mm) Cap