NGK Ferrari 456 GT 1998-1995 Direct Fit Oxygen Sensor

This is an NGK oxygen sensor, part number 25547, designed to fit a range of Ferrari models. Oxygen sensors are a key part of your vehicle's onboard diagnostic system. They constantly send feedback to the engine control unit (ECU) to help manage the air-fuel ratio, which is crucial for keeping the engine running smoothly, getting the best possible fuel economy, and minimizing harmful exhaust emissions. A properly functioning sensor also alerts the OBDII system to potential issues with fuel delivery or the catalytic converter.

NGK, a major supplier of original equipment sensors, builds these units with an advanced ceramic sensor element. This element features a special overcoat designed to resist contamination and protect against poisoning, helping to ensure consistent performance over time. Because NTK is a ceramics company at its core, they have a lot of control over the quality of the ceramic material used, from the raw components all the way to the finished sensor. This attention to detail helps make sure the sensor does its job effectively.

This sensor is a direct fit for many Ferrari applications, including models like the 456 GT, 550 Maranello, and F355. When replacing an oxygen sensor, it's a good idea to check your vehicle's service manual for any specific installation procedures or torque specifications.