Genuine OEM Nissan Front Timing Chain Cover, part number 1104600Q1D. This cover encloses and protects the engine's timing chain and associated components, preventing the ingress of dirt and debris while retaining lubricating oil. It is typically made of metal for durability and heat resistance. Proper sealing is crucial for maintaining engine timing and lubrication. Genuine OEM parts ensure precise fitment and material specifications for reliable engine operation.