Delphi ES20227 Oxygen Sensor - Front Left, Front Right, Rear Left or Rear Right

Delphi ES20227 Oxygen Sensor Overview

Delphi ES20227 is a heated oxygen sensor built for specific Hyundai and Kia applications that require a 4-wire, square-connector design with an 18 x 1.5 mm thread. It draws on Delphi’s OE heritage and decades of supplier experience to deliver the fit and signal characteristics expected in emission control service.

Compatible With 2003-2010 Hyundai and Kia models including Santa Fe, Tucson, Sportage, Sorento, Optima, Sonata, Tiburon, XG350, and Amanti in the listed sensor positions.

Key Features

• Heated oxygen sensor for faster operating temperature and stable exhaust feedback
• 4-wire design with square connector shape
• 18 x 1.5 mm thread size for direct-thread applications
• Overall length: 730.0
• Package contents: oxygen sensor and instruction sheet
• Position-specific coverage for front left, front right, rear left, and rear right applications

Detailed Description

The Delphi ES20227 oxygen sensor is an emission control replacement part engineered for vehicles that rely on precise exhaust oxygen monitoring to manage fuel delivery and catalyst performance. Delphi’s OE background is reflected in the sensor design, making this part a practical choice for service on Hyundai Santa Fe, Hyundai Tucson, Kia Sorento, Kia Sportage, and related applications listed below. This part cross-references Bosch (e.g., 13358, 13773) for the same application.

Use Delphi ES20227 when the vehicle calls for a heated, 4-wire oxygen sensor with a square connector and the specified thread and length dimensions. The part number ES20227 is also referenced in interchange listings for several OE and aftermarket numbers, which helps simplify sourcing during repair.

What It Helps Address

• Check engine light related to oxygen sensor circuit or response faults
• Incorrect air-fuel mixture readings from a worn upstream or downstream sensor
• Reduced fuel economy caused by inaccurate exhaust feedback
• Emissions test failures tied to sensor performance
• Driveability issues associated with delayed or unstable sensor signal output

Installation Notes and Tips

Verify the exact position before ordering, since ES20227 is used in front left, front right, rear left, and rear right locations depending on the vehicle. Confirm connector shape, wire count, thread size, and sensor length against the original part before installation. For fitment-specific service, use the application details for 2003-2006 Hyundai Santa Fe, 2005-2009 Hyundai Tucson, 2005-2010 Kia Sportage, 2003-2006 Kia Sorento, and the other listed Hyundai and Kia models.

Quality Assurance

Delphi builds aftermarket parts with OE experience and supplier knowledge developed over many years of original-equipment service. That background supports consistent fitment and sensor construction for emission control repairs on Hyundai and Kia vehicles.