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Bosch 13278 Oxygen Sensor - Downstream
| Brand | Bosch 13278 |
|---|---|
| Position | Downstream |
| Product line | Actual OE Oxygen Sensor |
| Fits | INFINITI and Nissan · 4 vehicles |
Actual OE oxygen sensor. OE-proven quality trusted by vehicle manufacturers.
Narrow-band heated design. Delivers faster light-off and quicker closed-loop operation.
Threaded mounting. Standard replacement with a square connector and 4-wire harness.
Cross-references 226A00L713 for the same application. See all 1.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Bosch Actual OE Oxygen Sensor 13278
Bosch 13278 is a specific-fit, narrow-band heated oxygen sensor for downstream use on select 1998-1999 INFINITI I30 and Nissan Maxima applications. It provides direct air-fuel-ratio feedback to the ECU to support stable combustion control and lower emissions.
Key Features
- Specific-fit Bosch Actual OE Oxygen Sensor for targeted vehicle applications
- Narrow-band heated oxygen sensor with 4-wire configuration
- Threaded mounting with 18 mm thread diameter and 22 mm hex size
- Square connector with male terminals and included wiring harness
- Metal housing built for high-temperature and vibration exposure
- Downstream placement for 1998-1999 INFINITI I30 and Nissan Maxima
Product Details
Built on Bosch OE sensor development, part number 13278 uses a switching-type narrow-band design to deliver precise oxygen content readings to the engine control unit. Bosch’s ceramic sensing element and controlled heater response help the sensor reach operating temperature quickly and maintain consistent signal output during normal driving and changing exhaust conditions. This Bosch Actual OE Oxygen Sensor 13278 is a direct replacement choice for 1998-1999 INFINITI I30 and Nissan Maxima downstream locations, including 1999 INFINITI I30 downstream without California Emission System and 1999 Nissan Maxima downstream without California Emission System.
This part cross-references 226A00L713 for the same application.
What It Helps Address
- Check engine light concerns related to downstream oxygen sensor performance
- Incorrect air-fuel feedback readings sent to the ECU
- Rough combustion control caused by a worn narrow-band sensor
- Emissions test failures tied to sensor response issues
- Delayed closed-loop operation after sensor aging or contamination
Installation Notes
Fits 1998 INFINITI I30, downstream. Fits 1999 INFINITI I30, downstream. Fits 1998 Nissan Maxima, downstream. Fits 1999 Nissan Maxima, downstream. Confirm the threaded bung size, connector shape, and downstream location before installation. Use proper oxygen sensor service tools and inspect the harness routing to avoid heat damage or strain at the connector.
Quality Assurance
Bosch backs this oxygen sensor with more than five decades of OE development experience and supplies aftermarket sensors built to OE-proven standards for accuracy, durability, and consistent operation.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1999 | INFINITI | I30 | 3.0L | V6 | Downstream | without California Emission System; Actual OE Oxygen Sensor |
| 1999 | Nissan | Maxima | 3.0L | V6 | Downstream | without California Emission System; Actual OE Oxygen Sensor |
| 1998 | INFINITI | I30 | 3.0L | V6 | Downstream | Actual OE Oxygen Sensor |
| 1998 | Nissan | Maxima | 3.0L | V6 | Downstream | Actual OE Oxygen Sensor |
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