The BOSCH 1 462 C00 991 is a precision-engineered fuel quantity regulator valve specifically designed for modern Common-Rail diesel injection systems. This valve plays a critical role in controlling the precise amount of fuel injected into the engine cylinders, directly impacting performance, fuel efficiency, and emissions. By accurately regulating fuel flow based on engine load and speed, this BOSCH component helps maintain optimal combustion. This leads to smoother engine operation, improved power delivery, and reduced particulate matter. Its robust construction ensures durability and reliable performance even under demanding operating conditions. Replacing a faulty fuel quantity regulator valve with this genuine BOSCH part can resolve issues such as rough idling, poor acceleration, increased fuel consumption, and engine warning lights. Trust in BOSCH engineering for a high-quality solution that restores your vehicle's fuel system to its intended performance.