Delphi ES20119 Oxygen Sensor - Front or Rear

Delphi ES20119 Heated Oxygen Sensor Overview

The Delphi ES20119 is a heated oxygen sensor designed for precise emission control in Toyota vehicles. Engineered to meet OEM specifications, this sensor supports optimal engine performance and reduced emissions for Toyota 4Runner, Pickup, and T100 models.

• Heated oxygen sensor with 4-wire design for accurate readings
• Square connector shape ensuring secure and proper fitment
• Thread size of 18 x 1.5 mm compatible with specified Toyota models
• Overall length of 230.0 mm for correct installation depth
• Includes oxygen sensor and instruction sheet for installation guidance
• Compatible with front and rear positions depending on vehicle requirements

Technical Details and Compatibility

The Delphi ES20119 oxygen sensor features a heated sensor type that allows for faster warm-up times and improved fuel efficiency. Its 4-wire configuration supports both sensor heating and signal transmission, ensuring reliable data for the engine control unit. The square connector shape is designed to match factory wiring harnesses on Toyota 4Runner, Pickup, and T100 models, providing a secure electrical connection. With a thread size of 18 x 1.5 mm and an overall length of 230.0 mm, this sensor fits precisely in the designated exhaust ports. Installation instructions are included to assist with proper placement, whether in the front or rear position as specified by your vehicle’s requirements.

Common Applications and Problem Resolution

• Restores accurate oxygen level readings to improve fuel mixture control
• Helps resolve check engine light issues related to oxygen sensor faults
• Reduces emissions by ensuring proper catalytic converter function
• Improves engine performance and fuel economy by providing correct sensor data
• Addresses rough idling or poor acceleration caused by faulty sensors

Installation Notes and Tips

Before installation, verify the sensor position (front or rear) specific to your Toyota model. Use the included instruction sheet for guidance on torque specifications and connector engagement. It is recommended to disconnect the battery before sensor replacement to avoid electrical issues. Apply anti-seize compound on the threads if not pre-coated to facilitate future removal. Ensure the sensor wiring is routed away from hot exhaust components to prevent damage.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet strict quality standards and OEM specifications. The ES20119 part number undergoes rigorous testing to ensure durability and accurate performance under various operating conditions. This product typically includes a limited warranty covering defects in materials and workmanship. For detailed warranty terms, refer to Delphi’s official documentation or contact your parts provider.