DENSO Upstream Oxygen Sensor compatible with Toyota Corolla 1.8L L4 2003-2004

This DENSO Oxygen Sensor is compatible with Toyota Corolla 2004, 2003 1.8L L4 (Upstream) and is perfect for a tune up or performance upgrade.

• REDUCE EMISSIONS: The DENSO Oxygen Sensor, also known as an O2 sensor, showcases superior engineering for optimal performance. The oxygen sensor, located either upstream or downstream of the catalytic converter, is designed to monitor the air-fuel mixture under idle, moderate acceleration, and cruise conditions. The superior design of this oxygen sensor maximizes engine performance while reducing fuel consumption and harmful emissions
• ENSURE SMOG TEST COMPLIANCE: The DENSO Oxygen Sensor is designed to adhere to OE standards within incredibly close tolerances. The stainless steel housing is damage tolerant, and the double cover protects the ceramic element against silicone and lead poisoning. The porous PTFE filter allows atmospheric oxygen to enter the sensor without permitting water or engine grime to seep into the casing
• RELY ON QUALITY AUTO PARTS: From the development of direct ignition coils to revolutionizing the concept of the aftermarket performance spark plug by using platinum and iridium, DENSO is often on the front lines of product advancement
• TRUST IN DENSO: The automotive industry has recognized the DENSO commitment to quality through such prestigious awards as the Deming Award for Quality, the J.D. Power and Associates Chairman's Award, and numerous supplier awards for quality