The product is a set of 4 spark plugs with the OE/OEM part number 90919-01276 and interchange part number DILFR7K9G for Lexus IS300, IS200t, and NX300 vehicles. These spark plugs come with a manufacturer warranty of 2 years and are brand new, unused. The manufacturer part numbers associated with this product are DILFR7K9G and 90919-01276, ensuring compatibility and quality performance for your vehicle. Perfect for anyone looking to replace their spark plugs with reliable and long-lasting components.