The NGK 5238 V-Power Spark Plugs R5671A-9 are a set of four high-quality spark plugs designed for optimal performance in various engines. Manufactured by NGK, a trusted brand in the automotive industry, these spark plugs are known for their reliability and durability. With the manufacturer part number 5238, these spark plugs are sure to meet the needs of your vehicle and provide efficient and consistent spark for improved engine performance.