The CTA 22mm Injection Wrench, No. 5069, is designed for Cummins ISX applications as well as Freightliners, highway utility, and marine applications. Applications include common rail injection systems, power steering lines, expansion valves, A/C lines, hydraulic lines, industrial equipment, and fuel filter lines. The injection wrench can be purchased in a set with 19mm Injection Wrench, No. 2220X19, for a wider range of medium and heavy duty diesel applications. This set is the 2 Pc. Diesel/Cummins Fuel injection Wrench Set, No. 7815.