The product is an oxygen sensor with OE style, manufactured by DENSO with the manufacturer part number 234-4804. This sensor is designed specifically for use in vehicles to monitor and optimize the air-fuel ratio for efficient combustion and reduced emissions. DENSO is a reputable brand known for producing high-quality automotive components, ensuring reliability and performance in this oxygen sensor. It is a crucial part of the exhaust and emission system in cars and trucks, helping to maintain fuel efficiency and reduce harmful pollutants in the exhaust gases.