Delphi ES10914 Oxygen Sensor - Rear
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Delphi

Delphi ES10914 Oxygen Sensor - Rear

Brand Delphi ES10914
Position Rear
Connector Shape Round
Overall Length 1000.0
Package Contents Oxygen Sensor, Instruction Sheet
Sensor Type Heated
Thread Size 18 x 1.5 mm
Wire Quantity 4
Fits BMW · 23 vehicles

Heated sensor. Built for quicker operation and stable readings.

Round connector. Simplifies hookup with a straightforward plug-in design.

OE heritage. Backed by 100 years of original-equipment experience.

Cross-references Bosch 15680, Bosch 15681 and DENSO Auto Parts 234-4473 for the same application. See all 9.

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Rear Oxygen Sensor for BMW Applications

The Delphi ES10914 is a heated rear oxygen sensor built for select BMW models with manifold-mounted rear sensor locations. It uses a 4-wire design, a round connector, and an 18 x 1.5 mm thread size for direct-fit replacement in the listed applications. Delphi draws on OE heritage and supplier experience to bring factory-informed engineering to this aftermarket part.

Key Features

  • Heated oxygen sensor for rear position applications
  • 4-wire configuration with round connector shape
  • 18 x 1.5 mm thread size
  • 1000.0 overall length
  • Package contents: oxygen sensor and instruction sheet
  • Delphi ES10914 replacement part number for service matching

Detailed Description

Delphi ES10914 is an emission control oxygen sensor for the rear location on select BMW 325Ci, 330Ci, X3, 325i, 330i, 525i, and 530i models. It is specified for manifold-mounted rear sensor positions and is engineered with Delphi’s OE experience and supplier knowledge behind the design. If you are replacing a rear oxygen sensor on a 2003-2006 BMW 325Ci or a 2004-2006 BMW X3, this part number ES10914 provides the correct fitment details for the listed vehicles.

This part cross-references Bosch 15680 and DENSO Auto Parts 234-4473 for the same application.

What It Helps Address

  • Check engine light related to rear oxygen sensor performance
  • Incorrect exhaust oxygen readings from a worn sensor
  • Fuel trim issues caused by aging sensor response
  • Emission test failures tied to rear sensor faults
  • Driveability concerns linked to inaccurate exhaust feedback

Installation Notes and Tips

  • Verify rear position and manifold-mounted placement before installation.
  • Confirm the 4-wire connector and round connector shape match the original sensor.
  • Check thread size and harness routing before tightening the sensor.
  • Use the included instruction sheet during installation.
  • Confirm vehicle-specific fitment for BMW 325Ci, 330Ci, X3, 325i, 330i, 525i, and 530i applications before ordering.

Quality Assurance

Delphi builds this oxygen sensor with OE heritage and experience developed through long-term supplier relationships with major automakers. The ES10914 is engineered to meet the fitment and configuration requirements listed for the specified BMW rear sensor applications.

Related reading

This part fits 23 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelTransmissionPositionNotes
2006BMW325Ci—RearLocated on Manifold
2006BMW330Ci—RearLocated on Manifold
2006BMWX3AutomaticRearLocated on Manifold
2005BMW325Ci—RearLocated on Manifold
2005BMW325i—RearLocated on Manifold
2005BMW330Ci—RearLocated on Manifold
2005BMW330i—RearLocated on Manifold
2005BMW525i—RearLocated on Manifold
2005BMW530i—RearLocated on Manifold
2005BMWX3AutomaticRearLocated on Manifold
2004BMW325Ci—RearLocated on Manifold
2004BMW325i—RearLocated on Manifold
2004BMW330Ci—RearLocated on Manifold
2004BMW330i—RearLocated on Manifold
2004BMW525i—RearLocated on Manifold
2004BMW530i—RearLocated on Manifold
2004BMWX3AutomaticRearLocated on Manifold
2003BMW325Ci—RearLocated on Manifold
2003BMW325Ci—RearLocated on Manifold; From 03/2003
2003BMW325i—RearLocated on Manifold
2003BMW325i—RearLocated on Manifold; From 03/2003
2003BMW330Ci—RearLocated on Manifold; From 03/2003
2003BMW330i—RearLocated on Manifold
Directly replaces or cross-references 9 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Bosch — 15680Bosch — 15681DENSO Auto Parts — 234-447311 78 7 514 92611 78 7 514 9272565825024677SU7105SU7115