Delphi ES20054 Oxygen Sensor - Rear, Rear Left or Rear Right

Delphi ES20054 Heated Oxygen Sensor Overview

The Delphi ES20054 is a heated oxygen sensor designed for precise emission control in select Dodge and Jeep 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
• Round connector shape for secure and proper fitment
• Thread size of 18 x 1.5 mm compatible with specified vehicle models
• Overall length of 485.0 mm to match factory installation requirements
• Position-specific fitment for rear, rear left, and rear right locations
• Includes oxygen sensor and instruction sheet for installation guidance

Detailed Product Description

The Delphi ES20054 oxygen sensor is a heated, 4-wire sensor engineered to provide accurate oxygen level readings in the exhaust system. Its round connector and precise thread size of 18 x 1.5 mm ensure a secure and proper fit in the rear exhaust positions of compatible vehicles. With an overall length of 485.0 mm, this sensor is designed to match the factory specifications for Dodge Dakota, Dodge Durango, and Jeep Grand Cherokee models. The heating element allows the sensor to reach operating temperature quickly, improving emission control and fuel efficiency.

Compatible Vehicles and Applications

• Dodge Dakota (rear oxygen sensor replacement)
• Dodge Durango (rear left and rear right oxygen sensor)
• Jeep Grand Cherokee (rear position oxygen sensor)

Common Issues Addressed by the Delphi ES20054

• Check engine light triggered by faulty oxygen sensor readings
• Poor fuel economy due to incorrect air-fuel mixture data
• Increased emissions failing vehicle inspection standards
• Engine performance issues such as rough idling or hesitation
• Failed oxygen sensor diagnostic trouble codes (DTCs)

Installation Notes and Tips

Before installation, verify the sensor position matches your vehicle’s specific rear, rear left, or rear right location. Use the included instruction sheet for proper torque specifications and connector alignment. It is recommended to disconnect the battery before sensor replacement to avoid electrical issues. Applying anti-seize compound on the threads can facilitate future removal but avoid contaminating the sensor tip.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The ES20054 comes with a limited warranty covering defects in materials and workmanship. For detailed warranty terms, refer to the product documentation or Delphi’s official resources.