Delphi ES20105 Oxygen Sensor - Rear or Rear Right

Delphi ES20105 Heated Oxygen Sensor Overview

The Delphi ES20105 is a heated oxygen sensor designed for precise emission control in select Dodge vehicles. Engineered to meet OEM specifications, this sensor ensures accurate air-fuel mixture readings for optimal engine performance and reduced emissions.

• Heated sensor type for faster warm-up and improved efficiency
• 4-wire design for reliable signal transmission
• Square connector shape for secure and proper fitment
• Thread size of 18 x 1.5 mm compatible with specified Dodge models
• Overall length of 305.0 mm for correct installation depth
• Includes oxygen sensor and instruction sheet for installation guidance
• Positioned for rear or rear right placement depending on vehicle configuration

Detailed Product Description

The Delphi ES20105 oxygen sensor is a critical component in the emission control system of Dodge Dakota, Durango, and Ram 1500 models. Its heated sensor element allows the unit to reach operating temperature quickly, providing accurate oxygen level readings to the engine control unit (ECU). This helps maintain the proper air-fuel ratio, which is essential for efficient combustion and reduced exhaust emissions. The 4-wire configuration supports both the sensor signal and the heating element, ensuring consistent performance under various driving conditions. The square connector shape and 18 x 1.5 mm thread size are designed for a secure fit in the rear or rear right sensor locations, depending on the specific vehicle application. With an overall length of 305.0 mm, the sensor fits precisely to maintain proper sensor positioning and function.

Common Applications and Issues Addressed

• Helps resolve check engine light triggers related to oxygen sensor faults
• Improves fuel efficiency by providing accurate air-fuel mixture data
• Reduces harmful emissions by ensuring proper catalytic converter operation
• Addresses rough idling or engine hesitation caused by faulty oxygen sensors
• Prevents failed emissions tests due to sensor malfunction

Installation Notes and Tips

• Verify sensor position (rear or rear right) specific to your Dodge Dakota, Durango, or Ram 1500 before installation
• Use proper tools to avoid damaging the 18 x 1.5 mm threaded sensor
• Ensure the square connector is fully seated to prevent electrical issues
• Follow the included instruction sheet for torque specifications and wiring guidance
• Allow the engine to cool before removing the old sensor to avoid burns or damage

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet strict quality standards and OEM specifications. The ES20105 part number undergoes rigorous testing to ensure durability and reliable performance in emission control systems. While specific warranty details may vary, Delphi typically offers coverage against manufacturing defects to provide confidence in product longevity and function.