Delphi ES20180 Oxygen Sensor - Rear or Rear Right

Delphi ES20180 Heated Oxygen Sensor Overview

The Delphi ES20180 is a heated oxygen sensor designed for precise emission control in select Toyota vehicles. Engineered to meet OEM specifications, this sensor supports optimal engine performance and reduced emissions for Toyota RAV4 and Sienna models.

• Heated sensor type for faster warm-up and accurate readings
• 4-wire configuration ensuring reliable electrical connections
• Flat connector shape for secure and proper fitment
• Thread size of 18 x 1.5 mm compatible with specified Toyota models
• Overall length of 670.0 mm for correct installation depth
• Includes oxygen sensor and instruction sheet for installation guidance
• Positioned for rear or rear right placement depending on vehicle requirements

Technical Details and Compatibility

The Delphi ES20180 oxygen sensor features a heated design that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. Its 4-wire setup supports both the sensor signal and heater circuit, ensuring consistent performance. The flat connector shape is engineered to match the factory harness, minimizing installation issues. With a thread size of 18 x 1.5 mm and an overall length of 670 mm, this sensor fits the rear or rear right position on Toyota RAV4 and Sienna models. Always verify the exact sensor position for your specific vehicle year and engine configuration.

Common Applications and Problem Resolution

• Helps resolve check engine light codes related to oxygen sensor failure
• Improves fuel economy by providing accurate air-fuel mixture data
• Reduces harmful emissions by ensuring proper catalytic converter function
• Addresses rough idling or engine hesitation caused by faulty sensors
• Prevents failed emissions tests due to sensor malfunctions

Installation Notes and Tips

• Ensure the vehicle is cooled before sensor removal to avoid burns
• Use appropriate oxygen sensor socket tools to prevent damage
• Apply anti-seize compound on threads if not pre-coated
• Confirm sensor position (rear or rear right) matches vehicle requirements
• Follow the included instruction sheet for torque specifications and wiring checks

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet strict quality standards and OEM specifications. The ES20180 part number undergoes rigorous testing to ensure durability and accurate sensor output. While specific warranty details may vary, Delphi typically offers coverage against defects in materials and workmanship. Refer to the product documentation or supplier for exact warranty terms.