Bosch 18174 Wideband AFR Oxygen Sensor

The Bosch 18174 is a premium wideband air/fuel ratio oxygen sensor that uses an advanced planar pump-cell design to continuously measure the air-fuel ratio across the full lambda range, providing the engine control unit with highly precise data for optimal engine management. Unlike traditional oxygen sensors that simply switch between rich and lean conditions, this wideband sensor precisely measures the amount of oxygen in the exhaust gas for superior fuel mixture control.

Key Features:

• Stainless steel body is fully submersible and sealed tight to protect against damage from exhaust emissions, ensuring longer sensor service life
• Fast-acting heater allows the sensor to reach operating temperature within seconds for optimum performance
• 100% factory tested for full functionality to ensure the sensor meets Bosch's rigorous quality and performance standards
• Enables exceptionally accurate air-fuel mixture control, supporting improved fuel efficiency, engine performance, and reduced emissions
• Robust ceramic construction delivers reliable performance during rapid load changes and harsh thermal cycles

Bosch pioneered the first wideband oxygen sensor and has supplied OE-quality sensors backed by more than five decades of development experience. Replacing a defective oxygen sensor helps ensure your engine operates efficiently while maximizing performance and reducing emissions.