NTK 5047 Upstream/Downstream Oxygen Sensor Switch

The NTK 5047 is an upstream/downstream oxygen sensor designed to deliver OE-level performance and accuracy in your vehicle's exhaust and emissions system. Manufactured by NTK — the sensor division of NGK, one of the world's leading OE suppliers — this sensor is engineered to meet or exceed original equipment specifications.

Oxygen sensors play a critical role in engine management, providing real-time feedback to the ECU to optimize fuel delivery, improve fuel economy, and reduce harmful emissions. The NTK 5047 is built to restore proper sensor function and maintain closed-loop engine operation.

Key Features:

• OE-quality construction for reliable, accurate air/fuel ratio monitoring
• Suitable for upstream (pre-catalytic converter) or downstream (post-catalytic converter) application
• Engineered to meet or exceed original equipment specifications
• Manufactured by NTK, the OE oxygen sensor brand trusted by major automakers worldwide
• Helps restore proper fuel trim, fuel economy, and emissions performance
• Direct-fit replacement for easy installation

The NTK 5047 is a straightforward, professional-grade solution for restoring oxygen sensor function. As an NTK product, it benefits from the same engineering standards applied to sensors found on new vehicles from the factory.