Front Oxygen Sensor for 1987-1990 Jeep Wrangler & More - Delphi ES10966

Keep the fuel mixture reading accurate with the Delphi Oxygen Sensor ES10966, a front-position lambda sensor that measures oxygen in the exhaust stream and signals the engine computer to adjust the air-fuel ratio. This Delphi sensor is a direct-fit replacement for many vehicles, among them the 1988-1995 Chevrolet C1500 4.3L / 5.0L / 5.7L / 7.4L and 1987-1990 Jeep Wrangler 4.2L, so check the "Vehicles it fits" section for the full list.

• OE-developed sensing: tested and calibrated to OE standards for accurate readings.
• Planar technology: covers older conical-design sensors for broad coverage.
• Patented protective coating: helps prevent contamination of the sensing element.
• Fuel-flexible: validated for all fuel types, including ethanol blends like E85.
• Durability tested: OE tested to 150,000 miles plus 2,000 hours of severe thermal testing.

Delphi is a global OE manufacturer for oxygen sensors, and every unit is built to its OE standards. Signs this front sensor may need replacing include an illuminated check engine light, a stored oxygen-sensor code, or reduced fuel economy — diagnose the cause before replacing. Each listing includes one oxygen sensor and an instruction sheet; the quantity used varies by application, so some vehicles use two while most use one. Country of origin: China.