Feature: Condition: Brand new Coated threads for easy installation. The oxygen sensors are durable and resistant to oxidation and high temperatures, ensuring long-term stable performance. Replacing your engine’s oxygen sensor can improve engine performance and fuel economy. This is a non-OEM product, accessory only! Specification: Color: Black Location: Front Upstream Material: Plastic, Metal Pin of Number: 6 Length: 72cm / 28.35"(L) Thread Diameter: 18mm / 0.71" OE Number: 3921023910Fitment:for Hyundai Elantra 2009 2010Package Includes:1 Pcs Oxygen Sensor