Delphi ES20417 Oxygen Sensor - Rear Right
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Delphi

Delphi ES20417 Oxygen Sensor - Rear Right

Brand Delphi ES20417
Position Rear Right
Connector Shape Square
Overall Length 880.0
Package Contents Oxygen Sensor, Instruction Sheet
Sensor Type Heated
Thread Size 18 x 1.5 mm
Wire Quantity 4
Fits Nissan · 2 vehicles

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

Heated sensor. Helps the sensor reach operating temperature quickly.

Square connector. Provides a secure, straightforward electrical connection.

Cross-references Bosch 18003, Bosch 18005 and DENSO Auto Parts 234-4197 for the same application. See all 8.

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Delphi ES20417 Rear Right Oxygen Sensor

The Delphi ES20417 is a heated oxygen sensor built for precise exhaust monitoring on select Nissan applications. It fits the rear right position on 2004 Nissan Frontier and 2004 Nissan Xterra, making it a direct-match option for common Nissan Frontier oxygen sensor and Nissan Xterra oxygen sensor replacement needs.

Key Features

  • Heated oxygen sensor for faster operating temperature
  • 4-wire design for signal and heater circuit operation
  • Square connector shape for OE-style connection fit
  • 18 x 1.5 mm thread size
  • 880.0 overall length
  • Rear right position application
  • Includes oxygen sensor and instruction sheet

Product Details

Delphi ES20417 is an emission control sensor engineered from Delphi’s OE heritage and decades of supplier experience with major automakers. As a heated oxygen sensor, it helps monitor exhaust oxygen content after the catalyst, supporting accurate feedback for engine management on the 2004 Nissan Frontier and 2004 Nissan Xterra. The square connector, 4-wire layout, and 18 x 1.5 mm thread size support OE-style replacement fitment where this exact configuration is required.

This part cross-references Bosch (e.g., 18003, 18005) for the same application.

What It Helps Address

  • Check engine light related to rear oxygen sensor faults
  • Incorrect exhaust oxygen signal readings
  • Heater circuit trouble codes
  • Rough emissions test results tied to sensor performance
  • Degraded sensor response from age or contamination

Installation Notes

Confirm rear right placement before installation and verify connector shape, wire count, and thread size against the original sensor. Use the included instruction sheet for installation guidance, and inspect the harness routing and exhaust threads before tightening the Delphi ES20417 into place. For 2004 Nissan Frontier and 2004 Nissan Xterra applications, match the sensor position exactly to avoid incorrect installation.

Quality Assurance

Delphi builds this oxygen sensor using OE experience and supplier knowledge developed through work with leading automakers. That background is reflected in the ES20417’s fitment-focused design and emission control application coverage.

Related reading

This part fits 2 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2004NissanFrontierRear Right—
2004NissanXterraRear Right—
Directly replaces or cross-references 8 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Bosch — 18003Bosch — 18005DENSO Auto Parts — 234-4197DENSO Auto Parts — 234-4198Four Seasons — 24818Walker Products — 250-24102226A0-EK800226A0-EK810