Bosch, Piezzo Common Rail Piezo Idle Shim

Bosch, Piezzo CR Piezo Idle Shim - 077-122

Bosch Piezo Common Rail (CR) Idle Shim is a critical calibration component used in Bosch diesel unit injectors, designed to maintain injection pressure stability under high pressure and enhance the accuracy of the fuel system. By precisely regulating the amount of fuel injected at idle speed with micron-level accuracy, it ensures stable engine operation across all RPM ranges, maximizes performance, and contributes to the optimization of emission levels. Specifically engineered for Bosch piezo injection technologies, this high-precision component is a standard part of Bosch common rail systems. With superior surface quality and excellent wear and fatigue resistance, the adjustment shim is manufactured with high precision through a lapping process to meet strict tolerance requirements.