DENSO Air-Fuel Ratio Sensor Heated Direct Fit

The DENSO Air-Fuel Ratio Sensor (also called an A/F sensor, wideband oxygen sensor or O2 sensor) is a heated, direct-fit replacement. It monitors the oxygen content of the exhaust stream. It sends that data to the engine control module, which uses it to keep fuel delivery precise across a wide range of operating conditions.

Key Features:

• Direct-fit design: Built to match the original equipment sensor, so it installs without modification or splicing.
• Integrated heater element: The sensor reaches operating temperature quickly. This helps the engine control module enter closed-loop fuel control sooner after a cold start.
• Accurate wideband sensing: It measures the air-fuel ratio across a broad range, not just a narrow rich/lean switch point. This supports good fuel economy, drivability and emissions control.
• OE-level quality: DENSO is a leading original equipment supplier of automotive sensors. It manufactures to strict quality and durability standards.
• Plug-and-play connector: The factory-style connector and wiring make installation straightforward.

A worn or failing air-fuel ratio sensor can cause poor fuel economy, rough running, a check engine light and higher emissions. Replacing it with a DENSO direct-fit sensor helps restore factory-level engine management performance. Select the child item that matches your application for the exact part number.