Delphi ES20327 Oxygen Sensor

Delphi Heated Oxygen Sensor for Lexus and Toyota Vehicles

The Delphi ES20327 oxygen sensor is designed to provide accurate emissions monitoring for select Lexus and Toyota models. Featuring a heated sensor element and a 4-wire design, this oxygen sensor supports efficient engine performance and emissions control.

• Heated oxygen sensor for faster warm-up and accurate readings
• 4-wire configuration for reliable signal and heater circuit
• Square connector shape for secure and proper fitment
• Thread size of 18 x 1.5 mm compatible with OEM specifications
• Overall length of 300.0 mm for correct installation depth
• Includes oxygen sensor and instruction sheet for installation guidance
• Compatible with front and rear positions including front left, front right, rear left

Product Details and Specifications

The Delphi ES20327 oxygen sensor is engineered to meet the emission control requirements of various Lexus and Toyota vehicles such as the 4Runner, Avalon, Camry, ES300, GX470, Paseo, Sienna, Solara, Tacoma, and Tercel. Its heated sensor type allows the unit to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The 4-wire design includes two wires for the sensor signal and two for the heater circuit, ensuring consistent performance. The square connector shape and 18 x 1.5 mm thread size align with factory specifications, facilitating a straightforward replacement process. With an overall length of 300 mm, this sensor fits properly in the exhaust system to provide accurate oxygen level readings.

Common Applications and Issues Addressed

• Helps resolve rough idling caused by incorrect air-fuel mixture readings
• Reduces engine hesitation and poor acceleration linked to faulty oxygen sensors
• Assists in correcting increased emissions and failed emissions tests
• Prevents check engine light triggers related to oxygen sensor faults
• Supports improved fuel economy by maintaining optimal combustion

Installation Notes and Tips

When installing the Delphi ES20327 oxygen sensor, ensure the vehicle is compatible by verifying the make and model, including Lexus 4Runner and Toyota Camry among others. Use the included instruction sheet for proper torque specifications and connector alignment. It is recommended to replace oxygen sensors when the engine and exhaust system are cool to avoid burns. Confirm the sensor’s position matches the original location, whether front or rear, to maintain accurate emissions control.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet OEM standards for durability and performance. The ES20327 part number undergoes rigorous testing to ensure reliable operation under various driving conditions. While specific warranty details may vary, Delphi typically offers coverage against defects in materials and workmanship to provide confidence in product quality.