Delphi ES10730 Oxygen Sensor - Front or Rear

Delphi ES10730 Oxygen Sensor Overview

The Delphi ES10730 is a heated oxygen sensor built for precise exhaust monitoring and reliable engine management feedback. It is a direct-fit style replacement for select Kia applications, including Spectra, Sportage, and Sephia models with front or rear sensor positions.

Key Features

• Heated oxygen sensor for faster operating temperature and stable signal output
• 4-wire design with a square connector shape
• 18 x 1.5 mm thread size for the specified application
• 400.0 overall length
• Package includes the oxygen sensor and instruction sheet
• Fits front and rear positions depending on vehicle application

Detailed Description

Delphi ES10730 is engineered with OE heritage and decades of supplier experience built into the part. Delphi draws on more than 100 years of OE knowledge and production experience, which helps support consistent sensor performance for emissions control and engine feedback systems. This oxygen sensor is used on select 1995-2002 Kia Sportage front and rear applications, 1998-2001 Kia Sephia front applications, and 2000-2001 Kia Spectra front applications. It also fits 2002 Kia Spectra front applications with the noted production cutoff.

This part cross-references Bosch 13404 and DENSO Auto Parts 234-3099 for the same application. The Delphi ES10730 part number is also commonly searched by drivers replacing a Kia oxygen sensor, Kia Sportage O2 sensor, or Kia Spectra front oxygen sensor.

What This Oxygen Sensor Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio feedback to the engine control module
• Reduced fuel economy caused by inaccurate exhaust readings
• Emissions test failures tied to sensor response issues
• Rough idle or drivability concerns linked to faulty exhaust monitoring

Installation Notes and Tips

Confirm the sensor position before ordering, since this part is listed for front, rear, and N/A positions depending on the vehicle. Verify thread size, connector shape, wire count, and overall length against the original sensor before installation. For 2002 Kia Spectra front applications, note the fitment cutoff of 05/22/2001. Always compare the application tab details to your vehicle’s exact configuration.

Quality Assurance

Delphi builds this oxygen sensor using OE-based engineering knowledge and aftermarket manufacturing experience. The brand’s long history supplying major automakers supports the design approach behind the ES10730 replacement sensor.