OE Quality
60-Day Returns

Bosch 13252 Oxygen Sensor - Upstream
Reliable Oxygen Sensor for Nissan D21 and Pathfinder
The Bosch Validated Oxygen Sensor 13252 is designed specifically for Nissan D21 and Pathfinder models. This narrow-band heated oxygen sensor ensures accurate emission control and optimal engine performance by monitoring exhaust gases effectively.
- Specific fit for Nissan D21 and Pathfinder vehicles
- Heated narrow-band oxygen sensor for precise readings
- Threaded mounting type with 18 mm thread diameter and 22 mm hex size
- 69-inch wiring harness length with 3-wire configuration and blade terminals
- Durable metal housing finished in steel for long-lasting use
- Oblong male connector with 3 terminals included
- Standard replacement grade for reliable emission control
About the Bosch Validated Oxygen Sensor Line
The Bosch Validated Oxygen Sensor product line focuses on delivering sensors that meet strict OEM specifications for fit, form, and function. This ensures that the Bosch 13252 oxygen sensor integrates seamlessly with your Nissan D21 or Pathfinder’s emission system, providing consistent and accurate air-fuel mixture data to the engine control unit.
Detailed Product Description
This Bosch oxygen sensor features a narrow-band heated design, which allows it to reach operating temperature quickly for faster and more accurate feedback. The sensor’s metal housing and threaded mounting type provide a secure and durable installation. With a wiring harness length of 69 inches and a 3-wire setup, it connects easily to the vehicle’s existing wiring using the oblong male connector with blade terminals. The sensor’s overall length is 72 inches, and it weighs approximately 0.31 pounds, making it a compact and efficient component for emission control.
Common Applications and Issues Addressed
- Restores proper air-fuel ratio monitoring in Nissan D21 and Pathfinder models
- Helps resolve rough idling and engine hesitation caused by faulty oxygen sensors
- Reduces increased emissions and failed emissions tests
- Improves fuel efficiency by providing accurate exhaust gas data
- Prevents check engine light triggers related to oxygen sensor faults
Installation Notes and Tips
When installing the Bosch 13252 oxygen sensor, ensure the threaded mounting hole is clean and free of debris. Use a 22 mm wrench or socket for proper tightening without over-torquing. The sensor’s heated design requires connection to the vehicle’s wiring harness using the included 3-wire oblong male connector. Verify the wiring harness length of 69 inches is sufficient for your installation location. No mounting bracket is included, so use the existing sensor mounting point on your Nissan D21 or Pathfinder.
Quality Assurance and Warranty
The Bosch Validated Oxygen Sensor 13252 is manufactured to meet OEM standards for durability and performance. Bosch provides quality assurance through rigorous testing to ensure reliable operation in emission control systems. Please refer to Bosch’s official warranty policy for specific coverage details.
| Brand | Bosch |
| Part Number | 13252 |
| Position | Bosch Validated Oxygen Sensor, Upstream |
| Wiring Harness Length | 69 |
| Terminal Type | Blade |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 3 |
| Grade Type | Standard replacement |
| Connector Shape | Oblong |
| Terminal Quantity | 3 |
| Connector Gender | Male |
| Terminal Gender | Male |
| Overall Length | 72 |
| Mounting Type | Threaded |
| Automotive Color / Finish | Steel |
| Automotive Item Weight (lbs) | 0.308647 lb |
| Heated (Oxygen Sensor) | Yes |
| Hex Size (Oxygen Sensor) | 22 mm |
| Housing Material | Metal |
| Length (Sealing Surface To End Of Connector) | 70.9 in |
| Mounting Bracket Included | No |
| Oxygen Sensor Type | Narrow-band heated |
| Sensor Type | Narrow-band |
| Thread Diameter (Oxygen Sensor) | 18 mm |
| Thread Size | 18 |
| Wiring Harness Included | Yes |
This part fits 8 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1993 | Nissan | D21 | 3.0L | V6 | Upstream | Bosch Validated Oxygen Sensor |
| 1993 | Nissan | Pathfinder | 3.0L | V6 | Upstream | Bosch Validated Oxygen Sensor |
| 1992 | Nissan | D21 | 3.0L | V6 | Upstream | Bosch Validated Oxygen Sensor |
| 1992 | Nissan | Pathfinder | 3.0L | V6 | Upstream | Bosch Validated Oxygen Sensor |
| 1991 | Nissan | D21 | 3.0L | V6 | Upstream | Bosch Validated Oxygen Sensor |
| 1991 | Nissan | Pathfinder | 3.0L | V6 | Upstream | Bosch Validated Oxygen Sensor |
| 1990 | Nissan | D21 | 3.0L | V6 | Upstream | Bosch Validated Oxygen Sensor |
| 1990 | Nissan | Pathfinder | 3.0L | V6 | Upstream | Bosch Validated Oxygen Sensor |
* 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.