Delphi ES20197 Oxygen Sensor

Delphi ES20197 Heated Oxygen Sensor Overview

The Delphi ES20197 is a heated oxygen sensor designed for precise emission control in select Chrysler, Dodge, and Mitsubishi vehicles. Engineered with a 4-wire configuration and a square connector, this sensor ensures accurate air-fuel mixture readings for optimal engine performance.

• Heated oxygen sensor with 4 wires for reliable operation
• Square connector shape for secure and proper fitment
• Thread size of 18 x 1.5 mm compatible with specified vehicles
• Overall length of 460.0 mm for correct installation depth
• Includes oxygen sensor and instruction sheet for installation guidance
• Compatible with front and rear positions on multiple vehicle models

Technical Details and Compatibility

The Delphi ES20197 oxygen sensor features a heated design that allows it to reach operating temperature quickly, improving sensor response time and reducing emissions during cold starts. The 4-wire setup supports both the sensor signal and heater circuit, ensuring consistent performance. Its square connector shape and 18 x 1.5 mm thread size provide a secure fit in the exhaust system. With an overall length of 460 mm, this sensor fits front and rear positions on Chrysler Aspen, Dodge Dakota, Durango, Pacifica, Raider, and Ram 1500 models. The package includes the oxygen sensor and an instruction sheet to assist with installation.

Common Applications and Problem Resolution

• Helps maintain proper air-fuel ratio for efficient combustion
• Reduces engine misfires caused by faulty oxygen sensor readings
• Improves fuel economy by providing accurate feedback to the engine control unit
• Prevents increased emissions and failed emissions tests
• Addresses check engine light issues related to oxygen sensor faults

Installation Notes and Tips

• Ensure the vehicle is cool before removing the old sensor to avoid burns
• Use the included instruction sheet for proper wiring and positioning
• Apply anti-seize compound on the threads if recommended to ease future removal
• Verify connector compatibility with the vehicle’s wiring harness before installation
• Torque the sensor to manufacturer specifications to prevent leaks or damage

Quality Assurance and Warranty Information

Delphi oxygen sensors are manufactured to meet OEM standards for durability and performance. The ES20197 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, providing confidence in the sensor’s longevity and function.