Delphi ES20354 Oxygen Sensor

Delphi ES20354 Oxygen Sensor for Mercedes-Benz and Chrysler Applications

Delphi ES20354 is a heated oxygen sensor built for precise exhaust monitoring in a wide range of Mercedes-Benz, Chrysler, Dodge, and Jeep applications. With OE heritage from a supplier to major automakers, this sensor is engineered with the fitment and connector details needed for direct replacement service.

Key Features

• Heated oxygen sensor design for faster operating temperature
• 4-wire configuration with square connector shape
• 18 x 1.5 mm thread size for specified applications
• 500.0 overall length
• Package contents include the oxygen sensor and instruction sheet
• Fits front, rear, rear left, rear right, and front right positions depending on vehicle application

Fitment and Application Details

Compatible with a broad range of vehicles, including Fits 2008-2012 Mercedes-Benz C300, Rear; Fits 2010-2013 Mercedes-Benz S400, Rear Left; Fits 2010-2013 Mercedes-Benz S400, Rear Right; Fits 2007-2010 Dodge Caliber, Front; and Fits 2007-2010 Jeep Patriot, Rear. This part number, ES20354, also applies to Mercedes-Benz E-Class, ML-Class, GL-Class, and Chrysler/Dodge/Jeep models listed in the fitment data.

This part cross-references Bosch (e.g., 15124, 16116) for the same application.

Delphi ES20354 is also used across select Mercedes-Benz S550, E350, GL450, and ML350 rear sensor locations, making it a practical replacement for vehicles that rely on accurate exhaust feedback for engine management.

What This Oxygen Sensor Helps Address

• Check engine light concerns related to oxygen sensor performance
• Incorrect air-fuel ratio readings from a worn sensor
• Reduced fuel control accuracy in closed-loop operation
• Slow sensor response caused by age or contamination
• Emissions test failures tied to faulty exhaust monitoring

Installation Notes and Tips

Verify the exact position before ordering, since this sensor is listed for front, rear, rear left, rear right, and front right locations depending on the vehicle. Confirm the connector shape, wire count, and thread size against the original sensor before installation. Use the vehicle application tab to match the correct side and location for your Mercedes-Benz, Chrysler, Dodge, or Jeep model.

Quality Assurance

Delphi draws on more than a century of OE experience and supplier knowledge used by major automakers. That OE background is reflected in the design and application coverage of ES20354, including the fitment details needed for direct replacement service.