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Part #: 234-2050

Denso 234-2050 Oxygen Sensor - Downstream or Upstream

Universal, Upstream
⚙️ 41 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Universal, Upstream
🚗Fitment: Toyota and Geo, Celica, RAV4, Camry, Prizm, Corolla, Paseo, Previa, Tercel, Van, and Van Wagon
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Overview of the Denso Universal Oxygen Sensor 234-2050

The Denso Universal Oxygen Sensor 234-2050 is designed to provide accurate air-fuel mixture readings for a range of vehicles including Toyota and Geo models. This non-heated sensor features a universal fit and a wiring harness length of 11.77 inches, making it suitable for various applications.

  • Non-heated oxygen sensor type
  • Universal fit compatible with multiple Toyota and Geo models
  • Wiring harness length of 11.77 inches for flexible installation
  • Two-wire configuration for reliable signal transmission
  • Part number 234-2050 for precise identification

Detailed Product Description

The Denso 234-2050 oxygen sensor is part of the Universal brand line, which offers adaptable solutions for emission control across different vehicle makes and models. This sensor is non-heated, relying on exhaust heat to reach operating temperature, and includes a wiring harness length of 11.77 inches to accommodate various engine bay layouts. With two wires, it provides the necessary signal for the engine control unit to monitor oxygen levels in the exhaust stream. The universal design allows compatibility with several Toyota vehicles such as the Camry, Celica, Corolla, Paseo, Previa, Prizm, RAV4, Tercel, and Van, as well as Geo models, ensuring broad application without the need for vehicle-specific sensors.

Common Applications and Issues Addressed

  • Helps maintain optimal air-fuel ratio for efficient combustion
  • Reduces emissions by providing accurate oxygen level data
  • Resolves engine performance issues related to faulty oxygen sensors
  • Prevents check engine light triggers caused by sensor failure
  • Improves fuel economy by enabling precise fuel mixture adjustments

Installation Notes and Tips

  • Ensure compatibility with your specific Toyota or Geo model before installation
  • Check wiring harness length of 11.77 inches to confirm fit within engine bay
  • Use proper tools to avoid damaging sensor threads during installation
  • Allow the exhaust system to cool before replacing the sensor to prevent burns
  • Verify sensor wiring connections match the vehicle’s harness for correct operation

Quality Assurance and Warranty

Denso’s Universal brand line is engineered to meet OEM standards for emission control sensors. The 234-2050 oxygen sensor undergoes rigorous testing to ensure durability and accurate performance. While specific warranty details may vary, Denso typically offers coverage against manufacturing defects to provide confidence in product reliability.

BrandDenso
Part Number234-2050
PositionUniversal, Upstream
Sensor TypeNon Heated
Universal Or Specific FitUniversal
Wire Quantity2
Wiring Harness Length11.77

This part fits 41 vehicles. Search below:

YearMakeModelPositionNotes
1999ToyotaCelicaUpstreamUniversal
1998ToyotaCelicaUpstreamUniversal
1997ToyotaCelicaUpstreamUniversal
1997ToyotaRAV4UpstreamUniversal
1996ToyotaCamryUpstreamUniversal
1996ToyotaCelicaUpstreamUniversal
1996ToyotaRAV4UpstreamUniversal
1995GeoPrizmUpstreamExcluding California.; Universal
1995ToyotaCelicaDownstreamUniversal
1995ToyotaCorollaUpstreamExcluding California.; Universal
1995ToyotaPaseoUpstreamExcluding California.; Universal
1995ToyotaPreviaDownstreamUniversal
1994GeoPrizmUpstreamExcluding California.; Universal
1994ToyotaCelicaDownstreamUniversal
1994ToyotaCorollaUpstreamExcluding California.; Universal
1994ToyotaPaseoUpstreamUniversal
1994ToyotaPreviaDownstreamUniversal
1994ToyotaTercelUpstreamUniversal
1993GeoPrizmUpstreamExcluding California.; Universal
1993ToyotaCelicaUpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; Universal
1993ToyotaCorollaUpstreamExcluding California.; Universal
1993ToyotaPaseoUpstreamUniversal
1993ToyotaPreviaDownstreamUniversal
1993ToyotaTercelUpstreamUniversal
1992GeoPrizmUpstreamUniversal
1992ToyotaCelicaUpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; Universal
1992ToyotaCorollaUpstreamUniversal
1992ToyotaPaseoUpstreamUniversal
1992ToyotaPreviaDownstreamUniversal
1992ToyotaTercelUpstreamUniversal
1991GeoPrizmUpstreamUniversal
1991ToyotaCelicaUpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; Universal
1991ToyotaCorollaUpstreamUniversal
1991ToyotaPreviaDownstreamUniversal
1991ToyotaTercelUpstreamUniversal
1990GeoPrizmUpstreamUniversal
1990ToyotaCelicaUpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; Universal
1990ToyotaCorollaUpstreamUniversal
1989GeoPrizmUpstreamUniversal
1989ToyotaVanDownstreamUniversal
1988ToyotaVanDownstreamUniversal

* 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:

12100121051220112202

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