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Denso 234-3095 Oxygen Sensor - Upstream Left
| Brand | Denso 234-3095 |
|---|---|
| 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 | 15.75 |
| Product line | OE Style |
| Fits | INFINITI and Nissan · 3 vehicles |
OE style replacement. Precision-built for exact replacement and a first-time fit.
Heated sensor. Helps support quicker operation and efficient engine performance.
Aluminum oxide trap layer. Protects the ceramic element from silicone and lead contamination.
Cross-references ACDelco 213-1278, ACDelco 213-1291 and BorgWarner OS1120 for the same application. See all 12.
Denso OE Style Oxygen Sensor 234-3095
Denso 234-3095 is an OE Style heated oxygen sensor built for exact replacement and first-time fit. It is engineered for specific applications on the 1998 Nissan Maxima and 1999 Infiniti I30, including upstream left positions.
Key Features
- Heated oxygen sensor with a specific fit design
- 3-wire configuration with male connector
- Threaded mounting type for direct replacement
- 15.75 in. wiring harness length
- 0.708 in. thread diameter
- OE Style construction for factory-style fit and function
OE Style Design
Denso’s OE Style line is built to match original equipment requirements for fit, form, and performance. The 234-3095 oxygen sensor uses precision-built components and Denso’s aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting stable engine operation and consistent fuel control. This part cross-references Bosch 13224 and NTK 24521 for the same application.
Vehicle Fitment
- Fits 1999 Infiniti I30, upstream left.
- Fits 1999 Nissan Maxima, upstream left.
- Fits 1998 Nissan Maxima, upstream left.
What This Sensor Helps Address
- Check engine light related to oxygen sensor performance
- Incorrect air-fuel mixture readings
- Poor fuel economy caused by a worn upstream sensor
- Slow sensor response affecting drivability
- Emission control faults on California exempt applications
Installation Notes
Verify the connector style, wire count, thread diameter, and upstream left location before installation. This is a specific-fit threaded sensor, so matching the vehicle application and sensor position is important for proper operation. Use the listed fitment for 1998 Nissan Maxima and 1999 Infiniti I30 applications only.
Quality Assurance
Denso manufactures and tests this oxygen sensor to OE standards for consistent replacement quality and accurate fitment. The 234-3095 is part of Denso’s OE Style product line, which focuses on factory-style replacement parts for direct installation on the listed vehicles.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1999 | INFINITI | I30 | Upstream Left | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 1999 | Nissan | Maxima | Upstream Left | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 1998 | Nissan | Maxima | Upstream Left | From 06/98; Calif.; OE Style |
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