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Denso 234-2051 Oxygen Sensor - Downstream
| Brand | Denso 234-2051 |
|---|---|
| Position | Downstream |
| Sensor Type | Non Heated |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 2 |
| Wiring Harness Length | 7.87 |
| Product line | OE Style |
| Fits | Geo and Toyota · 6 vehicles |
OE style replacement. Precision-built for an exact, first-time fit.
Aluminum oxide trap layer. Helps protect the ceramic element from contamination.
Non-heated sensor. A simple design with a 2-wire harness.
Cross-references ACDelco 213-434, ACDelco 213-1212 and BorgWarner OS619 for the same application. See all 12.
Denso OE Style Oxygen Sensor 234-2051
Denso 234-2051 is an OE Style oxygen sensor built for direct replacement on specific downstream applications. It is designed for 1993-1995 Geo Prizm and 1993-1995 Toyota Corolla fitments, with a non-heated, 2-wire configuration and a 7.87 in. wiring harness length.
Key Features
- OE Style replacement for exact-fit service on specific applications
- Non-heated oxygen sensor design
- 2-wire configuration
- 7.87 in. wiring harness length
- Downstream placement for listed Geo Prizm and Toyota Corolla models
OE Style Design and Fit
Denso’s OE Style line is built around direct replacement fitment and factory-style performance expectations. Part number 234-2051 is manufactured and tested to OE standards, with attention to sensor accuracy, connector fit, and installation consistency. This part cross-references Bosch 12201 and NTK 24510 for the same application. Compatible With 1993-1995 Geo Prizm, downstream, and 1993-1995 Toyota Corolla, downstream.
What This Oxygen Sensor Helps Address
- Check engine light concerns related to downstream oxygen sensor faults
- Incorrect exhaust oxygen readings affecting fuel control strategy
- Reduced fuel economy caused by a worn sensor
- Emissions test failures tied to sensor performance
- Slow or inconsistent sensor response on the listed applications
Installation Notes and Tips
Verify the connector style, wire count, and downstream location before installation. This sensor uses a specific fit design, so confirm the vehicle application against the part number 234-2051 before ordering. For 1993-1995 Toyota Corolla and 1993-1995 Geo Prizm applications, match the original sensor location and harness routing to ensure proper installation.
Quality Assurance
Denso manufactures and tests this oxygen sensor to OE standards and uses an aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination. That protection supports stable sensor operation and long service life in the listed applications.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1995 | Geo | Prizm | Downstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 1995 | Toyota | Corolla | Downstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 1994 | Geo | Prizm | Downstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 1994 | Toyota | Corolla | Downstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 1993 | Geo | Prizm | Downstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 1993 | Toyota | Corolla | Downstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| No rows match your filter. | ||||