This is a genuine VICTOR REINZ oil filler cap, part number 71-22735-00. Designed to meet the specific requirements of compatible vehicles, it provides a reliable and secure seal for your engine's oil reservoir. Proper sealing of the oil filler cap is crucial for preventing contaminants from entering the engine and for maintaining correct oil pressure. This cap is manufactured to high standards to ensure a snug fit and durable performance. Ensure you are purchasing the correct part for your vehicle's make and model. Refer to your vehicle's service manual or consult with a professional if you are unsure about compatibility.