The product is a new Denso Conventional Spark Plug W14EX-U, designed as a direct replacement for various automotive ignition systems. Manufactured by Denso, a reputable brand known for producing high-quality automotive parts, this spark plug is specifically designed for optimal performance in the vehicle's ignition system. With the manufacturer part numbers 2635 and W14EX-U, this spark plug is a reliable choice for maintaining the efficiency and functionality of the vehicle's ignition system.