Delphi ES20214 Oxygen Sensor - Front, Front Left, Front Right or Rear Right

Brand Delphi ES20214
Position Rear Right
Connector Shape Square
Overall Length 450.0
Package Contents Oxygen Sensor, Instruction Sheet
Position(s) Front, Front Left, Front Right, Rear Right. For the position specific to your vehicle, refer to the Application tab.
Sensor Type Heated
Thread Size 18 x 1.5 mm
Wire Quantity 4
Fits Kia and Hyundai · 27 vehicles

Heated sensor. Helps the oxygen sensor reach operating temperature quickly.

Square connector. Simplifies installation with a straightforward electrical connection.

OE heritage. Built with 100 years of OE experience and supplier knowledge.

Cross-references BBB Industries 13750, BBB Industries 13752 and Bosch 13753 for the same application. See all 49.

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Delphi ES20214 Oxygen Sensor Overview

Delphi ES20214 is a heated oxygen sensor built for precise exhaust feedback in select Hyundai and Kia applications. With OE-based engineering and a 4-wire heated design, it supports accurate air-fuel monitoring for vehicles such as the Hyundai Sonata, Hyundai Santa Fe, Hyundai XG300, Hyundai XG350, Kia Optima, and Kia Amanti.

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 the listed applications
  • Overall length: 450.0
  • Package contents: oxygen sensor and instruction sheet
  • Position-specific fitment for front, front left, front right, and rear right locations
  • OE heritage and application knowledge from Delphi

Detailed Description

Delphi ES20214 is engineered from decades of OE experience and built to meet the demands of modern emission control systems. This heated oxygen sensor helps the engine control module monitor exhaust oxygen content so the vehicle can maintain proper fuel delivery and emissions performance. It is a direct-fit style replacement for select 1999-2006 Hyundai and Kia models, including Fits 1999-2005 Hyundai Sonata, front; Fits 2001-2004 Hyundai Santa Fe, front; Fits 2001 Hyundai XG300, front left; Fits 2001 Hyundai XG300, front right; Fits 2001 Hyundai XG300, rear right; Fits 2002-2005 Hyundai XG350, rear right; Fits 2001-2006 Kia Optima, front; and Fits 2004-2006 Kia Amanti, rear right. This part cross-references Bosch 13752 and DENSO Auto Parts 234-4434 for the same application.

Common Issues This Sensor May Address

  • Check engine light related to oxygen sensor performance
  • Incorrect fuel trim readings from a worn upstream or downstream sensor
  • Reduced emissions monitoring accuracy
  • Rough idle or drivability concerns tied to exhaust feedback faults
  • Slow sensor response after extended service life

Installation Notes and Tips

Verify the exact sensor position for your vehicle before ordering, since ES20214 is used in multiple front and rear right locations. Confirm connector shape, wire count, thread size, and overall length against the original part before installation. For best results, inspect the harness routing and exhaust bung condition, and follow the included instruction sheet during replacement.

Quality Assurance

Delphi draws on OE heritage and supplier experience with major automakers, and that background is reflected in the design and application coverage of ES20214. The part number ES20214 is built for the listed Hyundai and Kia fitments with OE-style specifications.

This part fits 27 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2006KiaAmantiRear Right
2006KiaOptimaFront
2005HyundaiSonataFront
2005HyundaiXG350Rear Right
2005KiaAmantiRear Right
2005KiaOptimaFront
2004HyundaiSanta FeFront
2004HyundaiSonataFront
2004HyundaiXG350Rear Right
2004KiaAmantiRear Right
2004KiaOptimaFront
2003HyundaiSanta FeFront
2003HyundaiSonataFront
2003HyundaiXG350Rear Right
2003KiaOptimaFront
2002HyundaiSanta FeFront
2002HyundaiSonataFront
2002HyundaiXG350Rear Right
2002KiaOptimaFront
2001HyundaiSanta FeFront
2001HyundaiSonataFront
2001HyundaiXG300Rear Right
2001HyundaiXG300Front Right
2001HyundaiXG300Front Left
2001KiaOptimaFront
2000HyundaiSonataFront
1999HyundaiSonataFront
Directly replaces or cross-references 49 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
BBB Industries — 13750BBB Industries — 13752Bosch — 13753Carlson — 15050DENSO Auto Parts — 234-4434DENSO Auto Parts — 234-4435DENSO Auto Parts — 234-4436NTK — 25151NTK — 25155Quality-Built — 15033Quality-Built — 15034Quality-Built — 156565S34585S34595S34605S35325S42315S4500156-4204800 2301439210-3800539210-3802539210-3901039210-3901539210-3903039210-3904025024422OS1614OS1616OS2338OS2483OS2484OS2488REA1072REA1172SG860SG862SG1505SG1646SG1647SG1651SU5552SU5890SU5891SU5893SU6236SU6792XGN860XGN862