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Denso 234-4041 Oxygen Sensor - Downstream or Upstream
Reliable Oxygen Sensor for Mazda 626
The Denso OE Style 234-4041 oxygen sensor is designed specifically for Mazda 626 models, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a threaded mounting type and a 20.08-inch wiring harness for straightforward installation.
- Heated oxygen sensor for accurate emissions monitoring
- Specific fit for Mazda 626 vehicles
- Threaded mounting with 0.708-inch thread diameter
- 20.08-inch wiring harness length for flexible placement
- Four-wire design with female connector for secure connection
About the Denso OE Style Product Line
The OE Style line by Denso offers oxygen sensors engineered to meet original equipment specifications. This ensures compatibility and reliable performance for vehicles like the Mazda 626. The 234-4041 sensor maintains factory standards for fit, function, and durability, making it a suitable replacement part for emission control systems.
Detailed Product Description
The Denso 234-4041 oxygen sensor is a heated sensor designed to provide accurate readings of oxygen levels in the exhaust gases. Its four-wire configuration includes a heating element that allows the sensor to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The sensor’s female connector and 20.08-inch wiring harness length facilitate a secure and adaptable installation. The threaded mounting type with a 0.708-inch diameter ensures a precise fit in the exhaust system of Mazda 626 models.
Common Issues Addressed by This Oxygen Sensor
- Check engine light triggered by faulty oxygen sensor readings
- Poor fuel economy due to incorrect air-fuel mixture
- Increased emissions failing vehicle inspections
- Engine performance problems such as rough idling or hesitation
- Failed or degraded catalytic converter efficiency
Installation Notes and Tips
- Ensure the vehicle is cool before removing the old sensor to avoid burns
- Use appropriate tools to avoid damaging the threaded mounting
- Verify connector compatibility with the Mazda 626 wiring harness
- Apply anti-seize compound on threads if recommended by manufacturer
- Clear any diagnostic trouble codes after installation
Quality Assurance and Warranty
Denso OE Style oxygen sensors are manufactured to meet strict quality standards, ensuring reliable operation and durability. The 234-4041 part number is backed by Denso’s commitment to OEM-level performance. Please refer to Denso’s warranty policy for specific coverage details.
| Brand | Denso |
|---|---|
| Part Number | 234-4041 |
| Position | OE Style, Upstream |
| Connector Gender | Female |
| Mounting Type | Threaded |
| Sensor Type | Heated |
| Thread Diameter | 0.708 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Wiring Harness Length | 20.08 |
This part fits 5 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2000 | Mazda | 626 | Upstream | Loc. Manifold; Canada & Exc. Calif.; Front; OE Style |
| 1999 | Mazda | 626 | Upstream | Loc. Manifold; Front; OE Style |
| 1999 | Mazda | 626 | Downstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 1998 | Mazda | 626 | Upstream | Loc. Manifold; Front; OE Style |
| 1998 | Mazda | 626 | Downstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
* 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.