HomeEmission Control > SensorsDelphi ES20192 Oxygen Sensor - Rear
Part #: ES20192

Delphi ES20192 Oxygen Sensor - Rear

Rear
⚙️ 21 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Lexus and Toyota, 4Runner, RAV4, SC300, T100, and Tacoma
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Delphi Heated Oxygen Sensor for Lexus and Toyota Vehicles

The Delphi ES20192 oxygen sensor is designed to provide accurate emissions monitoring for select Lexus and Toyota models. Featuring a heated sensor element and a four-wire design, this rear-position oxygen sensor helps maintain optimal engine performance and emissions control.

  • Heated oxygen sensor for faster warm-up and accurate readings
  • Four-wire configuration for reliable signal and heater control
  • Square connector shape for secure and proper fitment
  • Thread size of 18 x 1.5 mm compatible with specified vehicles
  • Overall length of 655.0 mm for correct installation depth
  • Includes oxygen sensor and instruction sheet for reference

Technical Details and Compatibility

The Delphi ES20192 oxygen sensor is engineered with a heated sensor type to reduce the time required for the sensor to reach operating temperature, improving emissions control during cold starts. The four-wire design supports both the sensor signal and the integrated heater circuit, ensuring consistent performance. Its square connector shape and 18 x 1.5 mm thread size are tailored for rear-position installation on compatible vehicles. With an overall length of 655.0 mm, this sensor fits securely in the exhaust system without modification.

This oxygen sensor is compatible with various Lexus and Toyota models, including the Lexus SC300 and Toyota 4Runner, RAV4, T100, and Tacoma. The part number ES20192 ensures you receive the correct sensor for these specific applications.

Common Applications and Problem Resolution

  • Helps resolve rough idling caused by faulty oxygen sensor readings
  • Addresses increased emissions and failed emissions tests
  • Improves fuel efficiency by providing accurate air-fuel mixture data
  • Reduces engine hesitation and stalling related to sensor malfunction
  • Prevents check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Delphi ES20192 oxygen sensor, ensure the vehicle is cooled down to avoid burns. Use the correct socket size for the 18 x 1.5 mm thread to prevent damage. Verify the square connector aligns properly with the vehicle harness to ensure a secure electrical connection. Follow the included instruction sheet for detailed installation guidance.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet OEM specifications for durability and performance. The ES20192 part undergoes rigorous testing to ensure reliable operation in demanding conditions. Please refer to Delphi's official warranty policy for coverage details.

BrandDelphi
Part NumberES20192
Sensor TypeHeated
Wire Quantity4
Connector ShapeSquare
Thread Size18 x 1.5 mm
Overall Length655.0
Package ContentsOxygen sensor, instruction sheet
Position(s)Rear

This part fits 21 vehicles. Search below:

YearMakeModelSubmodelBody TypeDrive TypePositionNotes
2000Toyota4RunnerRWDRearwith California Emission System
2000ToyotaRAV4Rear
2000ToyotaTacomaRWDRearwith California Emission System
2000ToyotaTacoma4WDRearwith California Emission System
2000ToyotaTacomaRWDRearwithout California Emission System
2000ToyotaTacomaExtended Cab Pickup4WDRearwith California Emission System
2000ToyotaTacomaExtended Cab PickupRearwith California Emission System
1999Toyota4RunnerRWDRearwith California Emission System
1999ToyotaRAV4Rear
1999ToyotaTacomaRWDRear
1998ToyotaRAV4Rear
1998ToyotaTacomaSR5RWDRear
1998ToyotaTacomaPre RunnerRWDRear
1998ToyotaTacomaBaseRWDRear
1997LexusSC300Rear
1996LexusSC300Rear
1995LexusSC300Rear
1994LexusSC300Rear
1994ToyotaT1004WDRearwith California Emission System
1993LexusSC300Rear
1992LexusSC300Rear

* 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:

131421316413520138-625138-720139161392015211213119921312002131394213143221314342131435213143621314402131483234-4155234-4159234-4189234-4204234-42142414024555245682502415589465-0401089465-0909089465-0926089465-2952589465-2989589465-3970589465-4906589465-8001989465-80029OS1418OS1446OS1554OS1575REA1139REA1534REA1542SG1842SG1843SG665SG693SG788SG800SG821SU4794SU4859SU4869SU4926SU4942SU4962SU4964

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