Cylinder head for Nissan YD25

The cylinder head, part number 11040AW4400, functions as the top cover for the engine block in the Nissan YD25. It seals the cylinders to form the combustion chamber where the air-fuel mixture ignites. This component houses the intake and exhaust valves, valve springs, guides, and seats, while also containing the internal passages for engine coolant and lubricating oil circulation. By maintaining a precise seal, it ensures the compression levels required for consistent engine power and efficiency.

This component is compatible with the Nissan YD25 engine platform. It is manufactured to meet the specific design requirements of this engine series. The cylinder head is a critical assembly that manages the thermal and mechanical stresses occurring during the combustion cycle. It provides the necessary structure to support the valve train and facilitates the flow of fluids essential for temperature regulation and lubrication within the engine block.