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Denso 234-3097 Oxygen Sensor - Upstream Left
| Brand | Denso 234-3097 |
|---|---|
| Position | Upstream Left |
| Connector Gender | Male |
| Mounting Type | Threaded |
| Sensor Type | Heated |
| Thread Diameter | 0.708 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 3 |
| Wiring Harness Length | 36.61 |
| Product line | OE Style |
| Fits | INFINITI and Nissan · 9 vehicles |
OE style replacement. Precision-built for a first-time fit.
Heated sensor. Helps support faster operation and consistent readings.
Aluminum oxide trap layer. Helps protect the ceramic element for longer service life.
Cross-references ACDelco 213-1294, Bosch 13228 and Datsun/Nissan 226910W001 for the same application. See all 9.
Denso 234-3097 Oxygen Sensor for Nissan and Infiniti
Denso 234-3097 is an OE Style heated oxygen sensor built for specific-fit replacement in select Nissan and Infiniti applications. It is engineered for the upstream left position on 1996-2000 Nissan Pathfinder and 1997-2000 INFINITI QX4, with the correct connector, thread size, and harness length for a direct replacement.
Key Features
- OE Style replacement oxygen sensor for precise fit and function
- Heated sensor design for faster operating temperature and stable signal output
- Specific fit for the upstream left position
- 3-wire configuration with male connector
- Threaded mounting type with 0.708 in. thread diameter
- 36.61 in. wiring harness length for application-specific routing
- Built to OE standards with Denso’s aluminum oxide trap layer for added protection against silicone and lead contamination
Detailed Description
Denso 234-3097 is a direct replacement oxygen sensor for drivers servicing emissions and fuel-control systems on the Nissan Pathfinder and INFINITI QX4. As part of Denso’s OE Style line, this sensor is precision built for exact replacement and first-time fit, helping restore accurate exhaust-gas feedback to the engine control system. The heated design supports quicker sensor operation, while the protective trap layer helps shield the ceramic element from contamination that can shorten sensor life and affect engine performance. This part cross-references Bosch 13228 for the same application.
What It Helps Address
- Check engine light caused by oxygen sensor faults
- Incorrect air-fuel mixture readings
- Reduced fuel economy from slow or inaccurate sensor response
- Emissions test failures related to upstream sensor performance
- Rough idle or drivability issues tied to exhaust feedback errors
Installation Notes and Fitment
Fits 1996-2000 Nissan Pathfinder, Upstream Left. Fits 1997-2000 INFINITI QX4, Upstream Left. Confirm the connector style, threaded mounting point, and harness routing before installation. This Denso 234-3097 oxygen sensor is a specific-fit replacement, so matching the upstream left location is important for proper operation on Nissan Pathfinder and INFINITI QX4 applications.
Quality Assurance
Denso manufactures and tests this oxygen sensor to strict OE standards for consistent fit and performance. The OE Style product line focuses on direct replacement parts built to match original equipment requirements for the correct application.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2000 | INFINITI | QX4 | Upstream Left | OE Style |
| 2000 | Nissan | Pathfinder | Upstream Left | OE Style |
| 1999 | INFINITI | QX4 | Upstream Left | OE Style |
| 1999 | Nissan | Pathfinder | Upstream Left | OE Style |
| 1998 | INFINITI | QX4 | Upstream Left | OE Style |
| 1998 | Nissan | Pathfinder | Upstream Left | OE Style |
| 1997 | INFINITI | QX4 | Upstream Left | OE Style |
| 1997 | Nissan | Pathfinder | Upstream Left | OE Style |
| 1996 | Nissan | Pathfinder | Upstream Left | OE Style |
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