NGK Mazda RX-7 1991-1989 Direct Fit Oxygen Sensor

NGK is known worldwide as a leading supplier of original equipment oxygen sensors, and this direct-fit sensor for your 1989-1991 Mazda RX-7 is built with that same expertise. The oxygen sensor is a crucial part of your car's diagnostic system, working to keep the engine running at its best. It constantly sends information back to the car's computer about the air-fuel mixture, which helps maximize fuel economy and reduce exhaust emissions.

This sensor features an advanced ceramic element designed with a three-stage protection system. This includes a plasma jet and a deposit trap overcoat that shields the element from contaminants, helping to prevent poisoning and ensure consistent performance over time. NTK, the manufacturer, is a ceramics company at its core, giving them control over the ceramic element from the raw materials all the way through to the finished product.