Volvo D13A / D13C fuel injector. The injectors are fully restored in a licensed Delphi and Bosch service. The injectors are not inferior in quality to new injectors, because only original parts are used in the restoration of the injectors. After checking them on the Delphi injector test stand, the injectors are additionally tested in a real engine, where a working environment is created. The injectors are given a one-year warranty.