HomeEmission Control > SensorsDelphi ES10559 Oxygen Sensor - Rear
Part #: ES10559

Delphi ES10559 Oxygen Sensor - Rear

Rear
3 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Geo and Toyota, Prizm and Van
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Delphi ES10559 Oxygen Sensor Overview

The Delphi ES10559 oxygen sensor is designed for precise emission control in select Geo and Toyota vehicles. This non-heated sensor features a two-wire design and a square connector shape, ensuring reliable performance in both front and rear positions depending on your vehicle's requirements.

  • Non-heated oxygen sensor type for accurate air-fuel mixture readings
  • Two-wire configuration compatible with specific vehicle systems
  • Square connector shape for secure and proper fitment
  • Thread size of 18 x 1.5 mm for direct replacement
  • Overall length of 505.0 mm to match factory specifications
  • Includes oxygen sensor and instruction sheet for installation guidance

Detailed Product Description

The Delphi ES10559 oxygen sensor is engineered to monitor exhaust gases and provide critical data to the engine control unit (ECU) for optimal combustion efficiency. Its non-heated sensor type is suitable for applications where a heated sensor is not required, reducing complexity and potential failure points. The two-wire design supports signal and ground connections, while the square connector shape ensures compatibility with the original vehicle harness. With a thread size of 18 x 1.5 mm and an overall length of 505.0 mm, this sensor fits precisely in the designated mounting locations on Geo Prizm and Toyota Van models. Installation instructions are included to assist with proper placement and connection.

Compatible Vehicles and Applications

  • Geo Prizm oxygen sensor replacement
  • Toyota Van emission control sensor
  • Front and rear sensor positions depending on vehicle specifications
  • Emission control system component for improved fuel efficiency and reduced emissions

Installation Notes and Tips

  • Verify sensor position (front or rear) based on your vehicle’s service manual
  • Use appropriate tools to avoid damaging the sensor threads during installation
  • Ensure the connector is securely attached to prevent signal interruptions
  • Follow the included instruction sheet for torque specifications and wiring guidance

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet OEM standards for fit, form, and function. The ES10559 part number undergoes rigorous testing to ensure durability and accurate sensor readings. While specific warranty details may vary, Delphi typically offers coverage against defects in materials and workmanship to support long-term reliability in emission control applications.

BrandDelphi
Part NumberES10559
Connector ShapeSquare
Overall Length505.0
Package ContentsOxygen Sensor, Instruction Sheet
Position(s)Front, Rear. For the position specific to your vehicle, refer to the Application tab.
Sensor TypeNon Heated
Thread Size18 x 1.5 mm
Wire Quantity2

This part fits 3 vehicles. Search below:

YearMakeModelPositionNotes
1990GeoPrizmN/ATo Chassis # LZ090310
1989GeoPrizmN/A
1989ToyotaVanRear

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

12100138-264138-567156-202421312182131359234-2062245162502206289465-1218089465-1933589465-2804089465-2806089465-2923589465-2923889465-2933589465-2933694846974OS2077REA1462SG652SU1233SU4852

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.