The Blanking Plate Tool is a maintenance and diagnostic device for conducting leak tests on the nitrogen oxide reduction system (NRS) cooler. Comprised of three blanking plates, this tool seals the inlet and outlet ports of the cooler, allowing for accurate leak detection. By providing a secure and tight seal, the blanking plates prevent any leakage during the testing process, ensuring the integrity of the cooler.Attributes:• Provides secure fitting for the cooler ports.• Ensures leak-proof sealing during testing.• Exhibits high-pressure resistance.Applications: The Blanking Plate Tool is used during the maintenance and diagnostic procedures for the nitrogen oxide reduction system cooler of the engines, where it seals the inlet and outlet ports during leak testing for effective leak testing.