Delphi ES10331 Oxygen Sensor O2 Sensor OE Replacement

The Delphi ES10331 is a direct-fit OE replacement oxygen sensor (O2 sensor), engineered to restore precise exhaust oxygen monitoring and protect engine efficiency. As a global original equipment manufacturer, Delphi builds every aftermarket O2 sensor to the same rigorous standards used by the world's top automakers.

The oxygen sensor — also known as an O2 sensor or lambda sensor — monitors oxygen levels in the exhaust stream and feeds that data to the engine control module (ECM). This allows the engine to maintain the correct air-to-fuel ratio, reducing harmful emissions and optimizing fuel economy. Running too rich generates hydrocarbons and carbon monoxide; running too lean produces nitrogen-oxide pollutants. A failed or contaminated O2 sensor can result in up to 25% increased fuel consumption and elevated emissions output.

Key Features:

• OE-Level Engineering: Built to Delphi's original equipment design specifications for fit, form, and function
• Planar Sensor Technology: Delphi planar O2 sensors offer industry-leading activation times, getting up to temperature faster than conventional conical sensors
• Patented Protective Coating: Delphi's proprietary sensor coating resists contamination from silicone, phosphorous, and other fuel and oil additives
• All Fuel Type Validated: Compatible with all fuel types including ethanol blends such as E85 and other alcohol-based fuels
• OE-Matched Connectors & Wire Lengths: Plug-and-play installation with OE connectors and wire lengths for a direct fit
• High-Temperature Water Seal: Fitted with a high-temp water seal to resist moisture, vibration, and extreme heat that can degrade sensor response
• Durability Tested: OE tested to 150,000 miles and subjected to 2,000 hours of severe thermal testing
• Reduces Comebacks: Calibrated and tested to OE standards for accurate, reliable readings

The Delphi ES10331 oxygen sensor is the professional's choice for a dependable, long-lasting O2 sensor replacement backed by genuine OE expertise.